| 2019-Iowa (Big Ten) |
| Aug. 31 | vs | Miami (Ohio) (8-6) | W | 38 | 14 |
| Sep. 7 | vs | *Rutgers (2-10) | W | 30 | 0 |
| Sep. 14 | at | Iowa State (7-6) | W | 18 | 17 |
| Sep. 28 | vs | Middle Tennessee State (4-8) | W | 48 | 3 |
| Oct. 5 | at | *Michigan (9-4) | L | 3 | 10 |
| Oct. 12 | vs | *Penn State (11-2) | L | 12 | 17 |
| Oct. 19 | vs | *Purdue (4-8) | W | 26 | 20 |
| Oct. 26 | at | *Northwestern (3-9) | W | 20 | 0 |
| Nov. 9 | at | *Wisconsin (10-4) | L | 22 | 24 |
| Nov. 16 | vs | *Minnesota (11-2) | W | 23 | 19 |
| Nov. 23 | vs | *Illinois (6-7) | W | 19 | 10 |
| Nov. 29 | at | *Nebraska (5-7) | W | 27 | 24 |
| Dec. 27 | vs | Southern California (8-5) | W | 49 | 24 | at San Diego, CA | Holiday Bowl |
| | 10-3-0 | | 335 | 182 |
| 2018-Iowa (Big Ten) |
| Sep. 1 | vs | Northern Illinois (8-6) | W | 33 | 7 |
| Sep. 8 | vs | Iowa State (8-5) | W | 13 | 3 |
| Sep. 15 | vs | Northern Iowa ( ) | W | 38 | 14 |
| Sep. 22 | vs | *Wisconsin (8-5) | L | 17 | 28 |
| Oct. 6 | at | *Minnesota (7-6) | W | 48 | 31 |
| Oct. 13 | at | *Indiana (5-7) | W | 42 | 16 |
| Oct. 20 | vs | *Maryland (5-7) | W | 23 | 0 |
| Oct. 27 | at | *Penn State (9-4) | L | 24 | 30 |
| Nov. 3 | at | *Purdue (6-7) | L | 36 | 38 |
| Nov. 10 | vs | *Northwestern (9-5) | L | 10 | 14 |
| Nov. 17 | at | *Illinois (4-8) | W | 63 | 0 |
| Nov. 23 | vs | *Nebraska (4-8) | W | 31 | 28 |
| Jan. 1 | vs | Mississippi State (8-5) | W | 27 | 22 | at Tampa, FL | Outback Bowl |
| | 9-4-0 | | 405 | 231 |
| 2017-Iowa (Big Ten) |
| Sep. 2 | vs | Wyoming (8-5) | W | 24 | 3 |
| Sep. 9 | at | Iowa State (8-5) | W | 44 | 41 |
| Sep. 16 | vs | North Texas (9-5) | W | 31 | 14 |
| Sep. 23 | vs | *Penn State (11-2) | L | 19 | 21 |
| Sep. 30 | at | *Michigan State (10-3) | L | 10 | 17 |
| Oct. 7 | vs | *Illinois (2-10) | W | 45 | 16 |
| Oct. 21 | at | *Northwestern (10-3) | L | 10 | 17 |
| Oct. 28 | vs | *Minnesota (5-7) | W | 17 | 10 |
| Nov. 4 | vs | *Ohio State (12-2) | W | 55 | 24 |
| Nov. 11 | at | *Wisconsin (13-1) | L | 14 | 38 |
| Nov. 18 | vs | *Purdue (7-6) | L | 15 | 24 |
| Nov. 24 | at | *Nebraska (4-8) | W | 56 | 14 |
| Dec. 27 | vs | Boston College (7-6) | W | 27 | 20 | at New York, NY | Pinstripe Bowl |
| | 8-5-0 | | 367 | 259 |
| 2016-Iowa (Big Ten) |
| Sep. 3 | vs | Miami (Ohio) (6-7) | W | 45 | 21 |
| Sep. 10 | vs | Iowa State (3-9) | W | 42 | 3 |
| Sep. 17 | vs | North Dakota State ( ) | L | 21 | 23 |
| Sep. 24 | at | *Rutgers (2-10) | W | 14 | 7 |
| Oct. 1 | vs | *Northwestern (7-6) | L | 31 | 38 |
| Oct. 8 | at | *Minnesota (9-4) | W | 14 | 7 |
| Oct. 15 | at | *Purdue (3-9) | W | 49 | 35 |
| Oct. 22 | vs | *Wisconsin (11-3) | L | 9 | 17 |
| Nov. 5 | at | *Penn State (11-3) | L | 14 | 41 |
| Nov. 12 | vs | *Michigan (10-3) | W | 14 | 13 |
| Nov. 19 | at | *Illinois (3-9) | W | 28 | 0 |
| Nov. 25 | vs | *Nebraska (9-4) | W | 40 | 10 |
| Jan. 2 | vs | Florida (9-4) | L | 3 | 30 | at Tampa, FL | Outback Bowl |
| | 8-5-0 | | 324 | 245 |
| 2015-Iowa (Big Ten) |
| Sep. 5 | vs | Illinois State ( ) | W | 31 | 14 |
| Sep. 12 | at | Iowa State (3-9) | W | 31 | 17 |
| Sep. 19 | vs | Pittsburgh (8-5) | W | 27 | 24 |
| Sep. 26 | vs | North Texas (1-11) | W | 62 | 16 |
| Oct. 3 | at | *Wisconsin (10-3) | W | 10 | 6 |
| Oct. 10 | vs | *Illinois (5-7) | W | 29 | 20 |
| Oct. 17 | at | *Northwestern (10-3) | W | 40 | 10 |
| Oct. 31 | vs | *Maryland (3-9) | W | 31 | 15 |
| Nov. 7 | at | *Indiana (6-7) | W | 35 | 27 |
| Nov. 14 | vs | *Minnesota (6-7) | W | 40 | 35 |
| Nov. 21 | vs | *Purdue (2-10) | W | 40 | 20 |
| Nov. 27 | at | *Nebraska (6-7) | W | 28 | 20 |
| Dec. 5 | vs | *Michigan State (12-2) | L | 13 | 16 | at Indianapolis, IN | Big Ten Championship |
| Jan. 1 | vs | Stanford (12-2) | L | 16 | 45 | at Pasadena, CA | Rose Bowl |
| | 12-2-0 | | 433 | 285 |
| 2014-Iowa (Big Ten) |
| Aug. 30 | vs | Northern Iowa ( ) | W | 31 | 23 |
| Sep. 6 | vs | Ball State (5-7) | W | 17 | 13 |
| Sep. 13 | vs | Iowa State (2-10) | L | 17 | 20 |
| Sep. 20 | at | Pittsburgh (6-7) | W | 24 | 20 |
| Sep. 27 | at | *Purdue (3-9) | W | 24 | 10 |
| Oct. 11 | vs | *Indiana (4-8) | W | 45 | 29 |
| Oct. 18 | at | *Maryland (7-6) | L | 31 | 38 |
| Nov. 1 | vs | *Northwestern (5-7) | W | 48 | 7 |
| Nov. 8 | at | *Minnesota (8-5) | L | 14 | 51 |
| Nov. 15 | at | *Illinois (6-7) | W | 30 | 14 |
| Nov. 22 | vs | *Wisconsin (11-3) | L | 24 | 26 |
| Nov. 28 | vs | *Nebraska (9-4) | L | 34 | 37 |
| Jan. 2 | vs | Tennessee (7-6) | L | 28 | 45 | at Jacksonville, FL | TaxSlayer Bowl |
| | 7-6-0 | | 367 | 333 |
| 2013-Iowa (Big Ten) |
| Aug. 31 | vs | Northern Illinois (12-2) | L | 27 | 30 |
| Sep. 7 | vs | Missouri State ( ) | W | 28 | 14 |
| Sep. 14 | at | Iowa State (3-9) | W | 27 | 21 |
| Sep. 21 | vs | Western Michigan (1-11) | W | 59 | 3 |
| Sep. 28 | at | *Minnesota (8-5) | W | 23 | 7 |
| Oct. 5 | vs | *Michigan State (13-1) | L | 14 | 26 |
| Oct. 19 | at | *Ohio State (12-2) | L | 24 | 34 |
| Oct. 26 | vs | *Northwestern (5-7) | W | 17 | 10 |
| Nov. 2 | vs | *Wisconsin (9-4) | L | 9 | 28 |
| Nov. 9 | at | *Purdue (1-11) | W | 38 | 14 |
| Nov. 23 | vs | *Michigan (7-6) | W | 24 | 21 |
| Nov. 29 | at | *Nebraska (9-4) | W | 38 | 17 |
| Jan. 1 | vs | Louisiana State (10-3) | L | 14 | 21 | at Tampa, FL | Outback Bowl |
| | 8-5-0 | | 342 | 246 |
| 2012-Iowa (Big Ten) |
| Sep. 1 | vs | Northern Illinois (12-2) | W | 18 | 17 | at Chicago, IL |
| Sep. 8 | vs | Iowa State (6-7) | L | 6 | 9 |
| Sep. 15 | vs | Northern Iowa ( ) | W | 27 | 16 |
| Sep. 22 | vs | Central Michigan (7-6) | L | 31 | 32 |
| Sep. 29 | vs | *Minnesota (6-7) | W | 31 | 13 |
| Oct. 13 | at | *Michigan State (7-6) | W | 19 | 16 |
| Oct. 20 | vs | *Penn State (8-4) | L | 14 | 38 |
| Oct. 27 | at | *Northwestern (10-3) | L | 17 | 28 |
| Nov. 3 | at | *Indiana (4-8) | L | 21 | 24 |
| Nov. 10 | vs | *Purdue (6-7) | L | 24 | 27 |
| Nov. 17 | at | *Michigan (8-5) | L | 17 | 42 |
| Nov. 23 | vs | *Nebraska (10-4) | L | 7 | 13 |
| | 4-8-0 | | 232 | 275 |
| 2011-Iowa (Big Ten) |
| Sep. 3 | vs | Tennessee Tech ( ) | W | 34 | 7 |
| Sep. 10 | at | Iowa State (6-7) | L | 41 | 44 |
| Sep. 17 | vs | Pittsburgh (6-7) | W | 31 | 27 |
| Sep. 24 | vs | Louisiana-Monroe (4-8) | W | 45 | 17 |
| Oct. 8 | at | *Penn State (9-4) | L | 3 | 13 |
| Oct. 15 | vs | *Northwestern (6-7) | W | 41 | 31 |
| Oct. 22 | vs | *Indiana (1-11) | W | 45 | 24 |
| Oct. 29 | at | *Minnesota (3-9) | L | 21 | 22 |
| Nov. 5 | vs | *Michigan (11-2) | W | 24 | 16 |
| Nov. 12 | vs | *Michigan State (11-3) | L | 21 | 37 |
| Nov. 19 | at | *Purdue (7-6) | W | 31 | 21 |
| Nov. 25 | at | *Nebraska (9-4) | L | 7 | 20 |
| Dec. 30 | vs | Oklahoma (10-3) | L | 14 | 31 | at Tempe, AZ | Insight Bowl |
| | 7-6-0 | | 358 | 310 |
| 2010-Iowa (Big Ten) |
| Sep. 4 | vs | Eastern Illinois ( ) | W | 37 | 7 |
| Sep. 11 | vs | Iowa State (5-7) | W | 35 | 7 |
| Sep. 18 | at | Arizona (7-6) | L | 27 | 34 |
| Sep. 25 | vs | Ball State (4-8) | W | 45 | 0 |
| Oct. 2 | vs | *Penn State (7-6) | W | 24 | 3 |
| Oct. 16 | at | *Michigan (7-6) | W | 38 | 28 |
| Oct. 23 | vs | *Wisconsin (11-2) | L | 30 | 31 |
| Oct. 30 | vs | *Michigan State (11-2) | W | 37 | 6 |
| Nov. 6 | at | *Indiana (5-7) | W | 18 | 13 |
| Nov. 13 | at | *Northwestern (7-6) | L | 17 | 21 |
| Nov. 20 | vs | *Ohio State (12-1) | L | 17 | 20 |
| Nov. 27 | at | *Minnesota (3-9) | L | 24 | 27 |
| Dec. 28 | vs | Missouri (10-3) | W | 27 | 24 | at Tempe, AZ | Insight Bowl |
| | 8-5-0 | | 376 | 221 |
| 2009-Iowa (Big Ten) |
| Sep. 5 | vs | Northern Iowa ( ) | W | 17 | 16 |
| Sep. 12 | at | Iowa State (7-6) | W | 35 | 3 |
| Sep. 19 | vs | Arizona (8-5) | W | 27 | 17 |
| Sep. 26 | at | *Penn State (11-2) | W | 21 | 10 |
| Oct. 3 | vs | Arkansas State (4-8) | W | 24 | 21 |
| Oct. 10 | vs | *Michigan (5-7) | W | 30 | 28 |
| Oct. 17 | at | *Wisconsin (10-3) | W | 20 | 10 |
| Oct. 24 | at | *Michigan State (6-7) | W | 15 | 13 |
| Oct. 31 | vs | *Indiana (4-8) | W | 42 | 24 |
| Nov. 7 | vs | *Northwestern (8-5) | L | 10 | 17 |
| Nov. 14 | at | *Ohio State (11-2) | L | 24 | 27 |
| Nov. 21 | vs | *Minnesota (6-7) | W | 12 | 0 |
| Jan. 5 | vs | Georgia Tech (11-3) | W | 24 | 14 | at Miami, FL | Orange Bowl |
| | 11-2-0 | | 301 | 200 |
| 2008-Iowa (Big Ten) |
| Aug. 30 | vs | Maine ( ) | W | 46 | 3 |
| Sep. 6 | vs | Florida International (5-7) | W | 42 | 0 |
| Sep. 13 | vs | Iowa State (2-10) | W | 17 | 5 |
| Sep. 20 | at | Pittsburgh (9-4) | L | 20 | 21 |
| Sep. 27 | vs | *Northwestern (9-4) | L | 17 | 22 |
| Oct. 4 | at | *Michigan State (9-4) | L | 13 | 16 |
| Oct. 11 | at | *Indiana (3-9) | W | 45 | 9 |
| Oct. 18 | vs | *Wisconsin (7-6) | W | 38 | 16 |
| Nov. 1 | at | *Illinois (5-7) | L | 24 | 27 |
| Nov. 8 | vs | *Penn State (11-2) | W | 24 | 23 |
| Nov. 15 | vs | *Purdue (4-8) | W | 22 | 17 |
| Nov. 22 | at | *Minnesota (7-6) | W | 55 | 0 |
| Jan. 1 | vs | South Carolina (7-6) | W | 31 | 10 | at Tampa, FL | Outback Bowl |
| | 9-4-0 | | 394 | 169 |
| 2007-Iowa (Big Ten) |
| Sep. 1 | vs | Northern Illinois (2-10) | W | 16 | 3 | at Chicago, IL |
| Sep. 8 | vs | Syracuse (2-10) | W | 35 | 0 |
| Sep. 15 | at | Iowa State (3-9) | L | 13 | 15 |
| Sep. 22 | at | *Wisconsin (9-4) | L | 13 | 17 |
| Sep. 29 | vs | *Indiana (7-6) | L | 20 | 38 |
| Oct. 6 | at | *Penn State (9-4) | L | 7 | 27 |
| Oct. 13 | vs | *Illinois (9-4) | W | 10 | 6 |
| Oct. 20 | at | *Purdue (8-5) | L | 6 | 31 |
| Oct. 27 | vs | *Michigan State (7-6) | W | 34 | 27 |
| Nov. 3 | at | *Northwestern (6-6) | W | 28 | 17 |
| Nov. 10 | vs | *Minnesota (1-11) | W | 21 | 16 |
| Nov. 17 | vs | Western Michigan (5-7) | L | 19 | 28 |
| | 6-6-0 | | 222 | 225 |
| 2006-Iowa (Big Ten) |
| Sep. 2 | vs | Montana ( ) | W | 41 | 7 |
| Sep. 9 | at | Syracuse (4-8) | W | 20 | 13 |
| Sep. 16 | vs | Iowa State (4-8) | W | 27 | 17 |
| Sep. 23 | at | *Illinois (2-10) | W | 24 | 7 |
| Sep. 30 | vs | *Ohio State (12-1) | L | 17 | 38 |
| Oct. 7 | vs | *Purdue (8-6) | W | 47 | 17 |
| Oct. 14 | at | *Indiana (5-7) | L | 28 | 31 |
| Oct. 21 | at | *Michigan (11-2) | L | 6 | 20 |
| Oct. 28 | vs | Northern Illinois (7-6) | W | 24 | 14 |
| Nov. 4 | vs | *Northwestern (4-8) | L | 7 | 21 |
| Nov. 11 | vs | *Wisconsin (12-1) | L | 21 | 24 |
| Nov. 18 | at | *Minnesota (6-7) | L | 24 | 34 |
| Dec. 30 | vs | Texas (10-3) | L | 24 | 26 | at San Antonio, TX | Alamo Bowl |
| | 6-7-0 | | 310 | 269 |
| 2005-Iowa (Big Ten) |
| Sep. 3 | vs | Ball State (4-7) | W | 56 | 0 |
| Sep. 10 | at | Iowa State (7-5) | L | 3 | 23 |
| Sep. 17 | vs | Northern Iowa ( ) | W | 45 | 21 |
| Sep. 24 | at | *Ohio State (10-2) | L | 6 | 31 |
| Oct. 1 | vs | *Illinois (2-9) | W | 35 | 7 |
| Oct. 8 | at | *Purdue (5-6) | W | 34 | 17 |
| Oct. 15 | vs | *Indiana (4-7) | W | 38 | 21 |
| Oct. 22 | vs | *Michigan (7-5) | L | 20 | 23 |
| Nov. 5 | at | *Northwestern (7-5) | L | 27 | 28 |
| Nov. 12 | at | *Wisconsin (10-3) | W | 20 | 10 |
| Nov. 19 | vs | *Minnesota (7-5) | W | 52 | 28 |
| Jan. 2 | vs | Florida (9-3) | L | 24 | 31 | at Tampa, FL | Outback Bowl |
| | 7-5-0 | | 360 | 240 |
| 2004-Iowa (Big Ten) |
| Sep. 4 | vs | Kent State (5-6) | W | 39 | 7 |
| Sep. 11 | vs | Iowa State (7-5) | W | 17 | 10 |
| Sep. 18 | at | Arizona State (9-3) | L | 7 | 44 |
| Sep. 25 | at | *Michigan (9-3) | L | 17 | 30 |
| Oct. 2 | vs | *Michigan State (5-7) | W | 38 | 16 |
| Oct. 16 | vs | *Ohio State (8-4) | W | 33 | 7 |
| Oct. 23 | at | *Penn State (4-7) | W | 6 | 4 |
| Oct. 30 | at | *Illinois (3-8) | W | 23 | 13 |
| Nov. 6 | vs | *Purdue (7-5) | W | 23 | 21 |
| Nov. 13 | at | *Minnesota (7-5) | W | 29 | 27 |
| Nov. 20 | vs | *Wisconsin (9-3) | W | 30 | 7 |
| Jan. 1 | vs | Louisiana State (9-3) | W | 30 | 25 | at Orlando, FL | Capital One Bowl |
| | 10-2-0 | | 292 | 211 |
| 2003-Iowa (Big Ten) |
| Aug. 30 | vs | Miami (Ohio) (13-1) | W | 21 | 3 |
| Sep. 6 | vs | Buffalo (1-11) | W | 56 | 7 |
| Sep. 13 | at | Iowa State (2-10) | W | 40 | 21 |
| Sep. 20 | vs | Arizona State (5-7) | W | 21 | 2 |
| Sep. 27 | at | *Michigan State (8-5) | L | 10 | 20 |
| Oct. 4 | vs | *Michigan (10-3) | W | 30 | 27 |
| Oct. 18 | at | *Ohio State (11-2) | L | 10 | 19 |
| Oct. 25 | vs | *Penn State (3-9) | W | 26 | 14 |
| Nov. 1 | vs | *Illinois (1-11) | W | 41 | 10 |
| Nov. 8 | at | *Purdue (9-4) | L | 14 | 27 |
| Nov. 15 | vs | *Minnesota (10-3) | W | 40 | 22 |
| Nov. 22 | at | *Wisconsin (7-6) | W | 27 | 21 |
| Jan. 1 | vs | Florida (8-5) | W | 37 | 17 | at Tampa, FL | Outback Bowl |
| | 10-3-0 | | 373 | 210 |
| 2002-Iowa (Big Ten) |
| Aug. 31 | vs | Akron (4-8) | W | 57 | 21 |
| Sep. 7 | at | Miami (Ohio) (7-5) | W | 29 | 24 |
| Sep. 14 | vs | Iowa State (7-7) | L | 31 | 36 |
| Sep. 21 | vs | Utah State (4-7) | W | 48 | 7 |
| Sep. 28 | at | *Penn State (9-4) | W | 42 | 35 |
| Oct. 5 | vs | *Purdue (7-6) | W | 31 | 28 |
| Oct. 12 | vs | *Michigan State (4-8) | W | 44 | 16 |
| Oct. 19 | at | *Indiana (3-9) | W | 24 | 8 |
| Oct. 26 | at | *Michigan (10-3) | W | 34 | 9 |
| Nov. 2 | vs | *Wisconsin (8-6) | W | 20 | 3 |
| Nov. 9 | vs | *Northwestern (3-9) | W | 62 | 10 |
| Nov. 16 | at | *Minnesota (8-5) | W | 45 | 21 |
| Jan. 2 | vs | Southern California (11-2) | L | 17 | 38 | at Miami, FL | Orange Bowl |
| | 11-2-0 | | 484 | 256 |
| 2001-Iowa (Big Ten) |
| Sep. 1 | vs | Kent State (6-5) | W | 51 | 0 |
| Sep. 8 | vs | Miami (Ohio) (7-5) | W | 44 | 19 |
| Sep. 29 | vs | *Penn State (5-6) | W | 24 | 18 |
| Oct. 6 | at | *Purdue (6-6) | L | 14 | 23 |
| Oct. 13 | at | *Michigan State (7-5) | L | 28 | 31 |
| Oct. 20 | vs | *Indiana (5-6) | W | 42 | 28 |
| Oct. 27 | vs | *Michigan (8-4) | L | 26 | 32 |
| Nov. 3 | at | *Wisconsin (5-7) | L | 28 | 34 |
| Nov. 10 | at | *Northwestern (4-7) | W | 59 | 16 |
| Nov. 17 | vs | *Minnesota (4-7) | W | 42 | 24 |
| Nov. 24 | at | Iowa State (7-5) | L | 14 | 17 |
| Dec. 29 | vs | Texas Tech (7-5) | W | 19 | 16 | at San Antonio, TX | Alamo Bowl |
| | 7-5-0 | | 391 | 258 |
| 2000-Iowa (Big Ten) |
| Aug. 26 | vs | Kansas State (11-3) | L | 7 | 27 | at Kansas City, MO | Eddie Robinson Classic |
| Sep. 9 | vs | Western Michigan (9-3) | L | 21 | 27 |
| Sep. 16 | vs | Iowa State (9-3) | L | 14 | 24 |
| Sep. 23 | at | Nebraska (10-2) | L | 13 | 42 |
| Sep. 30 | at | *Indiana (3-8) | L | 33 | 45 |
| Oct. 7 | vs | *Michigan State (5-6) | W | 21 | 16 |
| Oct. 14 | at | *Illinois (5-6) | L | 0 | 31 |
| Oct. 21 | vs | *Ohio State (8-4) | L | 10 | 38 |
| Oct. 28 | vs | *Wisconsin (9-4) | L | 7 | 13 |
| Nov. 4 | at | *Penn State (5-7) | W | 26 | 23 |
| Nov. 11 | vs | *Northwestern (8-4) | W | 27 | 17 |
| Nov. 18 | at | *Minnesota (6-6) | L | 24 | 27 |
| | 3-9-0 | | 203 | 330 |
| 1999-Iowa (Big Ten) |
| Sep. 4 | vs | Nebraska (12-1) | L | 7 | 42 |
| Sep. 11 | at | Iowa State (4-7) | L | 10 | 17 |
| Sep. 18 | vs | Northern Illinois (5-6) | W | 24 | 0 |
| Oct. 2 | at | *Michigan State (10-2) | L | 3 | 49 |
| Oct. 9 | vs | *Penn State (10-3) | L | 7 | 31 |
| Oct. 16 | at | *Northwestern (3-8) | L | 21 | 23 |
| Oct. 23 | vs | *Indiana (4-7) | L | 31 | 38 |
| Oct. 30 | at | *Ohio State (6-6) | L | 11 | 41 |
| Nov. 6 | vs | *Illinois (8-4) | L | 24 | 40 |
| Nov. 13 | at | *Wisconsin (10-2) | L | 3 | 41 |
| Nov. 20 | vs | *Minnesota (8-4) | L | 21 | 25 |
| | 1-10-0 | | 162 | 347 |
| 1998-Iowa (Big Ten) |
| Sep. 5 | vs | Central Michigan (6-5) | W | 38 | 0 |
| Sep. 12 | vs | Iowa State (3-8) | L | 9 | 27 |
| Sep. 19 | at | Arizona (12-1) | L | 11 | 35 |
| Sep. 26 | at | *Illinois (3-8) | W | 37 | 14 |
| Oct. 3 | vs | *Michigan (10-3) | L | 9 | 12 |
| Oct. 10 | vs | *Northwestern (3-9) | W | 26 | 24 |
| Oct. 17 | at | *Indiana (4-7) | L | 7 | 14 |
| Oct. 24 | vs | *Wisconsin (11-1) | L | 0 | 31 |
| Oct. 31 | at | *Purdue (9-4) | L | 14 | 36 |
| Nov. 14 | vs | *Ohio State (11-1) | L | 14 | 45 |
| Nov. 21 | at | *Minnesota (5-6) | L | 7 | 49 |
| | 3-8-0 | | 172 | 287 |
| 1997-Iowa (Big Ten) |
| Sep. 6 | vs | Northern Iowa ( ) | W | 66 | 0 |
| Sep. 13 | vs | Tulsa (2-9) | W | 54 | 16 |
| Sep. 20 | at | Iowa State (1-10) | W | 63 | 20 |
| Sep. 27 | vs | *Illinois (0-11) | W | 38 | 10 |
| Oct. 4 | at | *Ohio State (10-3) | L | 7 | 23 |
| Oct. 18 | at | *Michigan (12-0) | L | 24 | 28 |
| Oct. 25 | vs | *Indiana (2-9) | W | 62 | 0 |
| Nov. 1 | vs | *Purdue (9-3) | W | 35 | 17 |
| Nov. 8 | at | *Wisconsin (8-5) | L | 10 | 13 |
| Nov. 15 | at | *Northwestern (5-7) | L | 14 | 15 |
| Nov. 22 | vs | *Minnesota (3-9) | W | 31 | 0 |
| Dec. 31 | vs | Arizona State (9-3) | L | 7 | 17 | at El Paso, TX | Sun Bowl |
| | 7-5-0 | | 411 | 159 |
| 1996-Iowa (Big Ten) |
| Sep. 7 | vs | Arizona (5-6) | W | 21 | 20 |
| Sep. 14 | vs | Iowa State (2-9) | W | 38 | 13 |
| Sep. 21 | at | Tulsa (4-7) | L | 20 | 27 |
| Oct. 5 | vs | *Michigan State (6-6) | W | 37 | 30 |
| Oct. 12 | at | *Indiana (3-8) | W | 31 | 10 |
| Oct. 19 | at | *Penn State (11-2) | W | 21 | 20 |
| Oct. 26 | vs | *Ohio State (11-1) | L | 26 | 38 |
| Nov. 2 | at | *Illinois (2-9) | W | 31 | 21 |
| Nov. 9 | vs | *Northwestern (9-3) | L | 13 | 40 |
| Nov. 16 | vs | *Wisconsin (8-5) | W | 31 | 0 |
| Nov. 23 | at | *Minnesota (4-7) | W | 43 | 24 |
| Dec. 29 | vs | Texas Tech (7-5) | W | 27 | 0 | at San Antonio, TX | Alamo Bowl |
| | 9-3-0 | | 339 | 243 |
| 1995-Iowa (Big Ten) |
| Sep. 9 | vs | Northern Iowa ( ) | W | 34 | 13 |
| Sep. 16 | at | Iowa State (3-8) | W | 27 | 10 |
| Sep. 30 | vs | New Mexico State (4-7) | W | 59 | 21 |
| Oct. 7 | at | *Michigan State (6-5-1) | W | 21 | 7 |
| Oct. 14 | vs | *Indiana (2-9) | W | 22 | 13 |
| Oct. 21 | vs | *Penn State (9-3) | L | 27 | 41 |
| Oct. 28 | at | *Ohio State (11-2) | L | 35 | 56 |
| Nov. 4 | vs | *Illinois (5-5-1) | L | 7 | 26 |
| Nov. 11 | at | *Northwestern (10-2) | L | 20 | 31 |
| Nov. 18 | at | *Wisconsin (4-5-2) | W | 33 | 20 |
| Nov. 25 | vs | *Minnesota (3-8) | W | 45 | 3 |
| Dec. 29 | vs | Washington (7-4-1) | W | 38 | 18 | at El Paso, TX | Sun Bowl |
| | 8-4-0 | | 368 | 259 |
| 1994-Iowa (Big Ten) |
| Sep. 3 | vs | Central Michigan (9-3) | W | 52 | 21 |
| Sep. 10 | vs | Iowa State (0-10-1) | W | 37 | 9 |
| Sep. 17 | at | *Penn State (12-0) | L | 21 | 61 |
| Sep. 24 | at | Oregon (9-4) | L | 18 | 40 |
| Oct. 1 | vs | *Michigan (8-4) | L | 14 | 29 |
| Oct. 8 | vs | *Indiana (6-5) | L | 20 | 27 |
| Oct. 15 | at | *Illinois (7-5) | L | 7 | 47 |
| Oct. 22 | vs | *Michigan State (5-6) | W | 19 | 14 |
| Oct. 29 | at | *Purdue (4-5-2) | T | 21 | 21 |
| Nov. 12 | vs | *Northwestern (3-7-1) | W | 49 | 13 |
| Nov. 19 | at | *Minnesota (3-8) | W | 49 | 42 |
| | 5-5-1 | | 307 | 324 |
| 1993-Iowa (Big Ten) |
| Sep. 4 | vs | Tulsa (4-6-1) | W | 26 | 25 |
| Sep. 11 | at | Iowa State (3-8) | W | 31 | 28 |
| Sep. 18 | vs | *Penn State (10-2) | L | 0 | 31 |
| Oct. 2 | at | *Michigan (8-4) | L | 7 | 24 |
| Oct. 9 | at | *Indiana (8-4) | L | 10 | 16 |
| Oct. 16 | vs | *Illinois (5-6) | L | 3 | 49 |
| Oct. 23 | at | *Michigan State (6-6) | L | 10 | 24 |
| Oct. 30 | vs | *Purdue (1-10) | W | 26 | 17 |
| Nov. 6 | vs | Northern Illinois (4-7) | W | 54 | 20 |
| Nov. 13 | at | *Northwestern (2-9) | W | 23 | 19 |
| Nov. 20 | vs | *Minnesota (4-7) | W | 21 | 3 |
| Dec. 31 | vs | California (9-4) | L | 3 | 37 | at San Antonio, TX | Alamo Bowl |
| | 6-6-0 | | 214 | 293 |
| 1992-Iowa (Big Ten) |
| Aug. 29 | vs | North Carolina State (9-3-1) | L | 14 | 24 | at East Rutherford, NJ | Kick-off Classic |
| Sep. 5 | vs | Miami (Florida) (11-1) | L | 7 | 24 |
| Sep. 12 | vs | Iowa State (4-7) | W | 21 | 7 |
| Sep. 26 | at | Colorado (9-2-1) | L | 12 | 28 |
| Oct. 3 | at | *Michigan (9-0-3) | L | 28 | 52 |
| Oct. 10 | vs | *Wisconsin (5-6) | W | 23 | 22 |
| Oct. 17 | at | *Illinois (6-5-1) | W | 24 | 14 |
| Oct. 24 | vs | *Purdue (4-7) | L | 16 | 27 |
| Oct. 31 | vs | *Ohio State (8-3-1) | L | 15 | 38 |
| Nov. 7 | at | *Indiana (5-6) | W | 14 | 0 |
| Nov. 14 | vs | *Northwestern (3-8) | W | 56 | 14 |
| Nov. 21 | at | *Minnesota (2-9) | L | 13 | 28 |
| | 5-7-0 | | 243 | 278 |
| 1991-Iowa (Big Ten) |
| Sep. 7 | vs | Hawaii (4-7-1) | W | 53 | 10 |
| Sep. 14 | at | Iowa State (3-7-1) | W | 29 | 10 |
| Sep. 28 | vs | Northern Illinois (2-9) | W | 58 | 7 |
| Oct. 5 | vs | *Michigan (10-2) | L | 24 | 43 |
| Oct. 12 | at | *Wisconsin (5-6) | W | 10 | 6 |
| Oct. 19 | vs | *Illinois (6-6) | W | 24 | 21 |
| Oct. 26 | at | *Purdue (4-7) | W | 31 | 21 |
| Nov. 2 | at | *Ohio State (8-4) | W | 16 | 9 |
| Nov. 9 | vs | *Indiana (7-4-1) | W | 38 | 21 |
| Nov. 16 | at | *Northwestern (3-8) | W | 24 | 10 |
| Nov. 23 | vs | *Minnesota (2-9) | W | 23 | 8 |
| Dec. 30 | vs | Brigham Young (8-3-2) | T | 13 | 13 | at San Diego, CA | Holiday Bowl |
| | 10-1-1 | | 343 | 179 |
| 1990-Iowa (Big Ten) |
| Sep. 15 | vs | Cincinnati (1-10) | W | 63 | 10 |
| Sep. 22 | vs | Iowa State (4-6-1) | W | 45 | 35 |
| Sep. 29 | at | Miami (Florida) (10-2) | L | 21 | 48 |
| Oct. 6 | at | *Michigan State (8-3-1) | W | 12 | 7 |
| Oct. 13 | vs | *Wisconsin (1-10) | W | 30 | 10 |
| Oct. 20 | at | *Michigan (9-3) | W | 24 | 23 |
| Oct. 27 | vs | *Northwestern (2-9) | W | 56 | 14 |
| Nov. 3 | at | *Illinois (8-4) | W | 54 | 28 |
| Nov. 10 | vs | *Ohio State (7-4-1) | L | 26 | 27 |
| Nov. 17 | vs | *Purdue (2-9) | W | 38 | 9 |
| Nov. 24 | at | *Minnesota (6-5) | L | 24 | 31 |
| Jan. 1 | vs | Washington (10-2) | L | 34 | 46 | at Pasadena, CA | Rose Bowl |
| | 8-4-0 | | 427 | 288 |
| 1989-Iowa (Big Ten) |
| Sep. 16 | vs | Oregon (8-4) | L | 6 | 44 |
| Sep. 23 | at | Iowa State (6-5) | W | 31 | 21 |
| Sep. 30 | vs | Tulsa (6-6) | W | 30 | 22 |
| Oct. 7 | vs | *Michigan State (8-4) | L | 14 | 17 |
| Oct. 14 | at | *Wisconsin (2-9) | W | 31 | 24 |
| Oct. 21 | vs | *Michigan (10-2) | L | 12 | 26 |
| Oct. 28 | at | *Northwestern (0-11) | W | 35 | 22 |
| Nov. 4 | vs | *Illinois (10-2) | L | 7 | 31 |
| Nov. 11 | at | *Ohio State (8-4) | L | 0 | 28 |
| Nov. 18 | at | *Purdue (3-8) | W | 24 | 0 |
| Nov. 25 | vs | *Minnesota (6-5) | L | 7 | 43 |
| | 5-6-0 | | 197 | 278 |
| 1988-Iowa (Big Ten) |
| Sep. 3 | at | Hawaii (9-3) | L | 24 | 27 |
| Sep. 10 | at | Kansas State (0-11) | W | 45 | 10 |
| Sep. 17 | vs | Colorado (8-4) | L | 21 | 24 |
| Sep. 24 | vs | Iowa State (5-6) | W | 10 | 3 |
| Oct. 1 | at | *Michigan State (6-5-1) | T | 10 | 10 |
| Oct. 8 | vs | *Wisconsin (1-10) | W | 31 | 6 |
| Oct. 15 | vs | *Michigan (9-2-1) | T | 17 | 17 |
| Oct. 22 | at | *Purdue (4-7) | W | 31 | 7 |
| Oct. 29 | at | *Indiana (8-3-1) | L | 34 | 45 |
| Nov. 5 | vs | *Northwestern (2-8-1) | W | 35 | 10 |
| Nov. 12 | vs | *Ohio State (4-6-1) | T | 24 | 24 |
| Nov. 19 | at | *Minnesota (2-7-2) | W | 31 | 22 |
| Dec. 31 | vs | North Carolina State (8-3-1) | L | 23 | 28 | at Atlanta, GA | Peach Bowl |
| | 6-4-3 | | 336 | 233 |
| 1987-Iowa (Big Ten) |
| Aug. 30 | vs | Tennessee (10-2-1) | L | 22 | 23 | at East Rutherford, NJ | Kick-off Classic |
| Sep. 12 | at | Arizona (4-4-3) | W | 15 | 14 |
| Sep. 19 | at | Iowa State (3-8) | W | 48 | 9 |
| Sep. 26 | vs | Kansas State (0-10-1) | W | 38 | 13 |
| Oct. 3 | vs | *Michigan State (9-2-1) | L | 14 | 19 |
| Oct. 10 | at | *Wisconsin (3-8) | W | 31 | 10 |
| Oct. 17 | at | *Michigan (8-4) | L | 10 | 37 |
| Oct. 24 | vs | *Purdue (3-7-1) | W | 38 | 14 |
| Oct. 31 | vs | *Indiana (8-4) | W | 29 | 21 |
| Nov. 7 | at | *Northwestern (2-8-1) | W | 52 | 24 |
| Nov. 14 | at | *Ohio State (6-4-1) | W | 29 | 27 |
| Nov. 21 | vs | *Minnesota (6-5) | W | 34 | 20 |
| Dec. 30 | vs | Wyoming (10-3) | W | 20 | 19 | at San Diego, CA | Holiday Bowl |
| | 10-3-0 | | 380 | 250 |
| 1986-Iowa (Big Ten) |
| Sep. 13 | vs | Iowa State (6-5) | W | 43 | 7 |
| Sep. 20 | vs | Northern Illinois (2-9) | W | 57 | 3 |
| Sep. 27 | vs | Texas-El Paso (4-8) | W | 69 | 7 |
| Oct. 4 | at | *Michigan State (6-5) | W | 24 | 21 |
| Oct. 11 | vs | *Wisconsin (3-9) | W | 17 | 6 |
| Oct. 18 | at | *Michigan (11-2) | L | 17 | 20 |
| Oct. 25 | vs | *Northwestern (4-7) | W | 27 | 20 |
| Nov. 1 | vs | *Ohio State (10-3) | L | 10 | 31 |
| Nov. 8 | at | *Illinois (4-7) | L | 16 | 20 |
| Nov. 15 | vs | *Purdue (3-8) | W | 42 | 14 |
| Nov. 22 | at | *Minnesota (6-6) | W | 30 | 27 |
| Dec. 30 | vs | San Diego State (8-4) | W | 39 | 38 | at San Diego, CA | Holiday Bowl |
| | 9-3-0 | | 391 | 214 |
| 1985-Iowa (Big Ten) |
| Sep. 14 | vs | Drake (4-7) | W | 58 | 0 |
| Sep. 21 | vs | Northern Illinois (4-7) | W | 48 | 20 |
| Sep. 28 | at | Iowa State (5-6) | W | 57 | 3 |
| Oct. 5 | vs | *Michigan State (7-5) | W | 35 | 31 |
| Oct. 12 | at | *Wisconsin (5-6) | W | 23 | 13 |
| Oct. 19 | vs | *Michigan (10-1-1) | W | 12 | 10 |
| Oct. 26 | at | *Northwestern (3-8) | W | 49 | 10 |
| Nov. 2 | at | *Ohio State (9-3) | L | 13 | 22 |
| Nov. 9 | vs | *Illinois (6-5-1) | W | 59 | 0 |
| Nov. 16 | at | *Purdue (5-6) | W | 27 | 24 |
| Nov. 23 | vs | *Minnesota (7-5) | W | 31 | 9 |
| Jan. 1 | vs | UCLA (9-2-1) | L | 28 | 45 | at Pasadena, CA | Rose Bowl |
| | 10-2-0 | | 440 | 187 |
| 1984-Iowa (Big Ten) |
| Sep. 8 | vs | Iowa State (2-7-2) | W | 59 | 21 |
| Sep. 15 | vs | Penn State (6-5) | L | 17 | 20 |
| Sep. 22 | at | *Ohio State (9-3) | L | 26 | 45 |
| Sep. 29 | vs | *Illinois (7-4) | W | 21 | 16 |
| Oct. 6 | at | *Northwestern (2-9) | W | 31 | 3 |
| Oct. 13 | at | *Purdue (7-5) | W | 40 | 3 |
| Oct. 20 | vs | *Michigan (6-6) | W | 26 | 0 |
| Oct. 27 | at | *Indiana (0-11) | W | 24 | 20 |
| Nov. 3 | vs | *Wisconsin (7-4-1) | T | 10 | 10 |
| Nov. 10 | vs | *Michigan State (6-6) | L | 16 | 17 |
| Nov. 17 | at | *Minnesota (4-7) | L | 17 | 23 |
| Dec. 1 | at | Hawaii (7-4) | W | 17 | 6 |
| Dec. 26 | vs | Texas (7-4-1) | W | 55 | 17 | at Anaheim, CA | Freedom Bowl |
| | 8-4-1 | | 359 | 201 |
| 1983-Iowa (Big Ten) |
| Sep. 10 | at | Iowa State (4-7) | W | 51 | 10 |
| Sep. 17 | at | Penn State (8-4-1) | W | 42 | 34 |
| Sep. 24 | vs | *Ohio State (9-3) | W | 20 | 14 |
| Oct. 1 | at | *Illinois (10-2) | L | 0 | 33 |
| Oct. 8 | vs | *Northwestern (2-9) | W | 61 | 21 |
| Oct. 15 | vs | *Purdue (3-7-1) | W | 31 | 14 |
| Oct. 22 | at | *Michigan (9-3) | L | 13 | 16 |
| Oct. 29 | vs | *Indiana (3-8) | W | 49 | 3 |
| Nov. 5 | at | *Wisconsin (7-4) | W | 34 | 14 |
| Nov. 12 | at | *Michigan State (4-6-1) | W | 12 | 6 |
| Nov. 19 | vs | *Minnesota (1-10) | W | 61 | 10 |
| Dec. 30 | vs | Florida (9-2-1) | L | 6 | 14 | at Jacksonville, FL | Gator Bowl |
| | 9-3-0 | | 380 | 189 |
| 1982-Iowa (Big Ten) |
| Sep. 11 | at | Nebraska (12-1) | L | 7 | 42 |
| Sep. 18 | vs | Iowa State (4-6-1) | L | 7 | 19 |
| Sep. 25 | at | Arizona (6-4-1) | W | 17 | 14 |
| Oct. 2 | vs | *Northwestern (3-8) | W | 45 | 7 |
| Oct. 9 | at | *Indiana (5-6) | W | 24 | 20 |
| Oct. 16 | vs | *Michigan (8-4) | L | 7 | 29 |
| Oct. 23 | at | *Minnesota (3-8) | W | 21 | 16 |
| Oct. 30 | vs | *Illinois (7-5) | W | 14 | 13 |
| Nov. 6 | at | *Purdue (3-8) | L | 7 | 16 |
| Nov. 13 | vs | *Wisconsin (7-5) | W | 28 | 14 |
| Nov. 20 | at | *Michigan State (2-9) | W | 24 | 18 |
| Dec. 31 | vs | Tennessee (6-5-1) | W | 28 | 22 | at Atlanta, GA | Peach Bowl |
| | 8-4-0 | | 229 | 230 |
| 1981-Iowa (Big Ten) |
| Sep. 12 | vs | Nebraska (9-3) | W | 10 | 7 |
| Sep. 19 | at | Iowa State (5-5-1) | L | 12 | 23 |
| Sep. 26 | vs | UCLA (7-4-1) | W | 20 | 7 |
| Oct. 3 | at | *Northwestern (0-11) | W | 64 | 0 |
| Oct. 10 | vs | *Indiana (3-8) | W | 42 | 28 |
| Oct. 17 | at | *Michigan (9-3) | W | 9 | 7 |
| Oct. 24 | vs | *Minnesota (6-5) | L | 10 | 12 |
| Oct. 31 | at | *Illinois (7-4) | L | 7 | 24 |
| Nov. 7 | vs | *Purdue (5-6) | W | 33 | 7 |
| Nov. 14 | at | *Wisconsin (7-5) | W | 17 | 7 |
| Nov. 21 | vs | *Michigan State (5-6) | W | 36 | 7 |
| Jan. 1 | vs | Washington (10-2) | L | 0 | 28 | at Pasadena, CA | Rose Bowl |
| | 8-4-0 | | 260 | 157 |
| 1980-Iowa (Big Ten) |
| Sep. 13 | at | *Indiana (6-5) | W | 16 | 7 |
| Sep. 20 | at | Nebraska (10-2) | L | 0 | 57 |
| Sep. 27 | vs | Iowa State (6-5) | L | 7 | 10 |
| Oct. 4 | vs | Arizona (5-6) | L | 3 | 5 |
| Oct. 11 | vs | *Illinois (3-7-1) | L | 14 | 20 |
| Oct. 18 | vs | *Northwestern (0-11) | W | 25 | 3 |
| Oct. 25 | at | *Minnesota (5-6) | L | 6 | 24 |
| Nov. 1 | vs | *Wisconsin (4-7) | W | 22 | 13 |
| Nov. 8 | at | *Purdue (9-3) | L | 13 | 58 |
| Nov. 15 | vs | *Ohio State (9-3) | L | 7 | 41 |
| Nov. 22 | at | *Michigan State (3-8) | W | 41 | 0 |
| | 4-7-0 | | 154 | 238 |
| 1979-Iowa (Big Ten) |
| Sep. 8 | vs | *Indiana (8-4) | L | 26 | 30 |
| Sep. 15 | at | Oklahoma (11-1) | L | 6 | 21 |
| Sep. 22 | vs | Nebraska (10-2) | L | 21 | 24 |
| Sep. 29 | vs | Iowa State (3-8) | W | 30 | 14 |
| Oct. 6 | at | *Illinois (2-8-1) | W | 13 | 7 |
| Oct. 13 | at | *Northwestern (1-10) | W | 58 | 6 |
| Oct. 20 | vs | *Minnesota (4-6-1) | L | 7 | 24 |
| Oct. 27 | at | *Wisconsin (4-7) | W | 24 | 13 |
| Nov. 3 | vs | *Purdue (10-2) | L | 14 | 20 |
| Nov. 10 | at | *Ohio State (11-1) | L | 7 | 34 |
| Nov. 17 | vs | *Michigan State (5-6) | W | 33 | 23 |
| | 5-6-0 | | 239 | 216 |
| 1978-Iowa (Big Ten) |
| Sep. 16 | vs | *Northwestern (0-10-1) | W | 20 | 3 |
| Sep. 23 | vs | Iowa State (8-4) | L | 0 | 31 |
| Sep. 30 | at | Arizona (5-6) | L | 3 | 23 |
| Oct. 7 | vs | Utah (8-3) | L | 9 | 13 |
| Oct. 14 | at | *Minnesota (5-6) | L | 20 | 22 |
| Oct. 21 | at | *Ohio State (7-4-1) | L | 7 | 31 |
| Oct. 28 | vs | *Purdue (9-2-1) | L | 7 | 34 |
| Nov. 4 | vs | *Michigan (10-2) | L | 0 | 34 |
| Nov. 11 | at | *Indiana (4-7) | L | 14 | 34 |
| Nov. 18 | vs | *Wisconsin (5-4-2) | W | 38 | 24 |
| Nov. 25 | at | *Michigan State (8-3) | L | 7 | 42 |
| | 2-9-0 | | 125 | 291 |
| 1977-Iowa (Big Ten) |
| Sep. 10 | vs | *Northwestern (1-10) | W | 24 | 0 |
| Sep. 17 | vs | Iowa State (8-4) | W | 12 | 10 |
| Sep. 24 | vs | Arizona (5-7) | L | 7 | 41 |
| Oct. 1 | at | UCLA (7-4) | L | 16 | 34 |
| Oct. 8 | vs | *Minnesota (7-5) | W | 18 | 6 |
| Oct. 15 | vs | *Ohio State (9-3) | L | 6 | 27 |
| Oct. 22 | at | *Purdue (5-6) | L | 21 | 34 |
| Oct. 29 | at | *Michigan (10-2) | L | 6 | 23 |
| Nov. 5 | vs | *Indiana (5-5-1) | L | 21 | 24 |
| Nov. 12 | at | *Wisconsin (5-6) | W | 24 | 8 |
| Nov. 19 | vs | *Michigan State (7-3-1) | L | 16 | 22 |
| | 4-7-0 | | 171 | 229 |
| 1976-Iowa (Big Ten) |
| Sep. 11 | at | *Illinois (5-6) | L | 6 | 24 |
| Sep. 18 | vs | Syracuse (3-8) | W | 41 | 3 |
| Sep. 25 | at | Penn State (7-5) | W | 7 | 6 |
| Oct. 2 | at | Southern California (11-1) | L | 0 | 55 |
| Oct. 9 | vs | *Ohio State (9-2-1) | L | 14 | 34 |
| Oct. 16 | vs | *Indiana (5-6) | L | 7 | 14 |
| Oct. 23 | at | *Minnesota (6-5) | W | 22 | 12 |
| Oct. 30 | vs | *Northwestern (1-10) | W | 13 | 10 |
| Nov. 6 | at | *Wisconsin (5-6) | L | 21 | 38 |
| Nov. 13 | vs | *Purdue (5-6) | L | 0 | 21 |
| Nov. 20 | at | *Michigan State (4-6-1) | W | 30 | 17 |
| | 5-6-0 | | 161 | 234 |
| 1975-Iowa (Big Ten) |
| Sep. 13 | vs | *Illinois (5-6) | L | 12 | 27 |
| Sep. 20 | at | Syracuse (6-5) | L | 7 | 10 |
| Sep. 27 | vs | Penn State (9-3) | L | 10 | 30 |
| Oct. 4 | vs | Southern California (8-4) | L | 16 | 27 |
| Oct. 11 | at | *Ohio State (11-1) | L | 0 | 49 |
| Oct. 18 | at | *Indiana (2-8-1) | W | 20 | 10 |
| Oct. 25 | vs | *Minnesota (6-5) | L | 7 | 31 |
| Nov. 1 | at | *Northwestern (3-8) | W | 24 | 21 |
| Nov. 8 | vs | *Wisconsin (4-6-1) | W | 45 | 28 |
| Nov. 15 | at | *Purdue (4-7) | L | 18 | 19 |
| Nov. 22 | vs | *Michigan State (7-4) | L | 23 | 27 |
| | 3-8-0 | | 182 | 279 |
| 1974-Iowa (Big Ten) |
| Sep. 14 | at | *Michigan (10-1) | L | 7 | 24 |
| Sep. 21 | vs | UCLA (6-3-2) | W | 21 | 10 |
| Sep. 28 | vs | Penn State (10-2) | L | 0 | 27 |
| Oct. 5 | at | Southern California (10-1-1) | L | 3 | 41 |
| Oct. 12 | vs | *Northwestern (3-8) | W | 35 | 10 |
| Oct. 19 | at | *Minnesota (4-7) | L | 17 | 23 |
| Oct. 26 | vs | *Illinois (6-4-1) | W | 14 | 12 |
| Nov. 2 | at | *Purdue (4-6-1) | L | 14 | 38 |
| Nov. 9 | vs | *Wisconsin (7-4) | L | 15 | 28 |
| Nov. 16 | vs | *Ohio State (10-2) | L | 10 | 35 |
| Nov. 23 | at | *Michigan State (7-3-1) | L | 21 | 60 |
| | 3-8-0 | | 157 | 308 |
| 1973-Iowa (Big Ten) |
| Sep. 15 | vs | *Michigan (10-0-1) | L | 7 | 31 |
| Sep. 22 | at | UCLA (9-2) | L | 18 | 55 |
| Sep. 29 | at | Penn State (12-0) | L | 8 | 27 |
| Oct. 6 | vs | Arizona (8-3) | L | 20 | 23 |
| Oct. 13 | at | *Northwestern (4-7) | L | 15 | 31 |
| Oct. 20 | vs | *Minnesota (7-4) | L | 23 | 31 |
| Oct. 27 | at | *Illinois (5-6) | L | 0 | 50 |
| Nov. 3 | vs | *Purdue (5-6) | L | 23 | 48 |
| Nov. 10 | at | *Wisconsin (4-7) | L | 7 | 35 |
| Nov. 17 | at | *Ohio State (10-0-1) | L | 13 | 55 |
| Nov. 24 | vs | *Michigan State (5-6) | L | 6 | 15 |
| | 0-11-0 | | 140 | 401 |
| 1972-Iowa (Big Ten) |
| Sep. 16 | at | *Ohio State (9-2) | L | 0 | 21 |
| Sep. 23 | vs | Oregon State (2-9) | W | 19 | 11 |
| Sep. 30 | at | Penn State (10-2) | L | 10 | 14 |
| Oct. 7 | vs | *Purdue (6-5) | L | 0 | 24 |
| Oct. 14 | at | *Northwestern (2-9) | W | 23 | 12 |
| Oct. 21 | at | *Minnesota (4-7) | L | 14 | 43 |
| Oct. 28 | vs | *Michigan State (5-5-1) | T | 6 | 6 |
| Nov. 4 | at | *Wisconsin (4-7) | L | 14 | 16 |
| Nov. 11 | vs | *Michigan (10-1) | L | 0 | 31 |
| Nov. 18 | at | *Indiana (5-6) | L | 8 | 16 |
| Nov. 25 | vs | *Illinois (3-8) | W | 15 | 14 |
| | 3-7-1 | | 109 | 208 |
| 1971-Iowa (Big Ten) |
| Sep. 11 | at | *Ohio State (6-4) | L | 21 | 52 |
| Sep. 18 | at | Oregon State (5-6) | L | 19 | 33 |
| Sep. 25 | vs | Penn State (11-1) | L | 14 | 44 |
| Oct. 2 | at | *Purdue (3-7) | L | 13 | 45 |
| Oct. 9 | vs | *Northwestern (7-4) | L | 3 | 28 |
| Oct. 16 | vs | *Minnesota (4-7) | L | 14 | 19 |
| Oct. 23 | at | *Michigan State (6-5) | L | 3 | 34 |
| Oct. 30 | vs | *Wisconsin (4-6-1) | W | 20 | 16 |
| Nov. 6 | at | *Michigan (11-1) | L | 7 | 63 |
| Nov. 13 | vs | *Indiana (3-8) | L | 7 | 14 |
| Nov. 20 | at | *Illinois (5-6) | L | 0 | 31 |
| | 1-10-0 | | 121 | 379 |
| 1970-Iowa (Big Ten) |
| Sep. 19 | vs | Oregon State (6-5) | L | 14 | 21 | at Portland, OR |
| Sep. 26 | vs | Southern California (6-4-1) | L | 0 | 48 |
| Oct. 3 | at | Arizona (4-6) | L | 10 | 17 |
| Oct. 10 | vs | *Wisconsin (4-5-1) | W | 24 | 14 |
| Oct. 17 | vs | *Purdue (4-6) | L | 3 | 24 |
| Oct. 24 | at | *Michigan State (4-6) | L | 0 | 37 |
| Oct. 31 | at | *Minnesota (3-6-1) | T | 14 | 14 |
| Nov. 7 | vs | *Indiana (1-9) | W | 42 | 13 |
| Nov. 14 | at | *Michigan (9-1) | L | 0 | 55 |
| Nov. 21 | vs | *Illinois (3-7) | W | 22 | 16 |
| | 3-6-1 | | 129 | 259 |
| 1969-Iowa (Big Ten) |
| Sep. 20 | vs | Oregon State (6-4) | L | 14 | 42 |
| Sep. 27 | vs | Washington State (1-9) | W | 61 | 35 |
| Oct. 4 | vs | Arizona (3-7) | W | 31 | 19 |
| Oct. 11 | at | *Wisconsin (3-7) | L | 17 | 23 |
| Oct. 18 | at | *Purdue (8-2) | L | 31 | 35 |
| Oct. 25 | vs | *Michigan State (4-6) | W | 19 | 18 |
| Nov. 1 | vs | *Minnesota (4-5-1) | L | 8 | 35 |
| Nov. 8 | at | *Indiana (4-6) | W | 28 | 17 |
| Nov. 15 | vs | *Michigan (8-3) | L | 6 | 51 |
| Nov. 22 | at | *Illinois (0-10) | W | 40 | 0 |
| | 5-5-0 | | 255 | 275 |
| 1968-Iowa (Big Ten) |
| Sep. 21 | vs | Oregon State (7-3) | W | 21 | 20 |
| Sep. 28 | at | Texas Christian (3-7) | L | 17 | 28 |
| Oct. 5 | vs | Notre Dame (7-2-1) | L | 28 | 51 |
| Oct. 12 | vs | *Indiana (6-4) | L | 34 | 38 |
| Oct. 19 | vs | *Wisconsin (0-10) | W | 41 | 0 |
| Oct. 26 | at | *Purdue (8-2) | L | 14 | 44 |
| Nov. 2 | at | *Minnesota (6-4) | W | 35 | 28 |
| Nov. 9 | vs | *Northwestern (1-9) | W | 68 | 34 |
| Nov. 16 | vs | *Ohio State (10-0) | L | 27 | 33 |
| Nov. 23 | at | *Illinois (1-9) | W | 37 | 13 |
| | 5-5-0 | | 322 | 289 |
| 1967-Iowa (Big Ten) |
| Sep. 23 | vs | Texas Christian (4-6) | W | 24 | 9 |
| Sep. 30 | vs | Oregon State (7-2-1) | L | 18 | 38 |
| Oct. 7 | at | Notre Dame (8-2) | L | 6 | 56 |
| Oct. 14 | at | *Indiana (9-2) | L | 17 | 21 |
| Oct. 21 | at | *Wisconsin (0-9-1) | T | 21 | 21 |
| Oct. 28 | vs | *Purdue (8-2) | L | 22 | 41 |
| Nov. 4 | vs | *Minnesota (8-2) | L | 0 | 10 |
| Nov. 11 | at | *Northwestern (3-7) | L | 24 | 39 |
| Nov. 18 | at | *Ohio State (6-3) | L | 10 | 21 |
| Nov. 25 | vs | *Illinois (4-6) | L | 19 | 21 |
| | 1-8-1 | | 161 | 277 |
| 1966-Iowa (Big Ten) |
| Sep. 17 | vs | Arizona (3-7) | W | 31 | 20 |
| Sep. 24 | vs | Oregon State (7-3) | L | 3 | 17 |
| Oct. 1 | vs | *Wisconsin (3-6-1) | L | 0 | 7 |
| Oct. 8 | at | *Purdue (9-2) | L | 0 | 35 |
| Oct. 15 | at | *Minnesota (4-5-1) | L | 0 | 17 |
| Oct. 22 | vs | *Northwestern (3-6-1) | L | 15 | 24 |
| Oct. 29 | vs | *Indiana (1-8-1) | W | 20 | 19 |
| Nov. 5 | at | *Michigan State (9-0-1) | L | 7 | 56 |
| Nov. 12 | vs | *Ohio State (4-5) | L | 10 | 14 |
| Nov. 18 | at | Miami (Florida) (8-2-1) | L | 0 | 44 |
| | 2-8-0 | | 86 | 253 |
| 1965-Iowa (Big Ten) |
| Sep. 18 | vs | Washington State (7-3) | L | 0 | 7 |
| Sep. 25 | vs | Oregon State (5-5) | W | 27 | 7 | at Portland, OR |
| Oct. 2 | at | *Wisconsin (2-7-1) | L | 13 | 16 |
| Oct. 9 | vs | *Purdue (7-2-1) | L | 14 | 17 |
| Oct. 16 | vs | *Minnesota (5-4-1) | L | 3 | 14 |
| Oct. 23 | at | *Northwestern (4-6) | L | 0 | 9 |
| Oct. 30 | at | *Indiana (2-8) | L | 17 | 21 |
| Nov. 6 | vs | *Michigan State (10-1) | L | 0 | 35 |
| Nov. 13 | at | *Ohio State (7-2) | L | 0 | 38 |
| Nov. 20 | vs | North Carolina State (6-4) | L | 20 | 28 |
| | 1-9-0 | | 94 | 192 |
| 1964-Iowa (Big Ten) |
| Sep. 26 | vs | Idaho (4-6) | W | 34 | 24 |
| Oct. 3 | vs | Washington (6-4) | W | 28 | 18 |
| Oct. 10 | at | *Indiana (2-7) | W | 21 | 20 |
| Oct. 17 | at | *Wisconsin (3-6) | L | 21 | 31 |
| Oct. 24 | vs | *Purdue (6-3) | L | 14 | 19 |
| Oct. 31 | vs | *Ohio State (7-2) | L | 19 | 21 |
| Nov. 7 | at | *Minnesota (5-4) | L | 13 | 14 |
| Nov. 14 | vs | *Michigan (9-1) | L | 20 | 34 |
| Nov. 21 | at | Notre Dame (9-1) | L | 0 | 28 |
| | 3-6-0 | | 170 | 209 |
| 1963-Iowa (Big Ten) |
| Sep. 28 | vs | Washington State (3-6-1) | T | 14 | 14 |
| Oct. 5 | at | Washington (6-5) | W | 17 | 7 |
| Oct. 12 | vs | *Indiana (3-6) | W | 37 | 26 |
| Oct. 19 | vs | *Wisconsin (5-4) | L | 7 | 10 |
| Oct. 26 | at | *Purdue (5-4) | L | 0 | 14 |
| Nov. 2 | at | *Ohio State (5-3-1) | L | 3 | 7 |
| Nov. 9 | vs | *Minnesota (3-6) | W | 27 | 13 |
| Nov. 16 | at | *Michigan (3-4-2) | T | 21 | 21 |
| | 3-3-2 | | 126 | 112 |
| 1962-Iowa (Big Ten) |
| Sep. 29 | vs | Oregon State (9-2) | W | 28 | 8 |
| Oct. 6 | vs | Southern California (11-0) | L | 0 | 7 |
| Oct. 13 | at | *Indiana (3-6) | W | 14 | 10 |
| Oct. 20 | at | *Wisconsin (8-2) | L | 14 | 42 |
| Oct. 27 | vs | *Purdue (4-4-1) | L | 3 | 26 |
| Nov. 3 | vs | *Ohio State (6-3) | W | 28 | 14 |
| Nov. 10 | at | *Minnesota (6-2-1) | L | 0 | 10 |
| Nov. 17 | vs | *Michigan (2-7) | W | 28 | 14 |
| Nov. 24 | at | Notre Dame (5-5) | L | 12 | 35 |
| | 4-5-0 | | 127 | 166 |
| 1961-Iowa (Big Ten) |
| Sep. 30 | vs | California (1-8-1) | W | 28 | 7 |
| Oct. 7 | at | Southern California (4-5-1) | W | 35 | 34 |
| Oct. 14 | vs | *Indiana (2-7) | W | 27 | 8 |
| Oct. 21 | vs | *Wisconsin (6-3) | W | 47 | 15 |
| Oct. 28 | at | *Purdue (6-3) | L | 0 | 9 |
| Nov. 4 | at | *Ohio State (8-0-1) | L | 13 | 29 |
| Nov. 11 | vs | *Minnesota (8-2) | L | 9 | 16 |
| Nov. 18 | at | *Michigan (6-3) | L | 14 | 23 |
| Nov. 25 | vs | Notre Dame (5-5) | W | 42 | 21 |
| | 5-4-0 | | 215 | 162 |
| 1960-Iowa (Big Ten) |
| Sep. 24 | vs | Oregon State (6-3-1) | W | 22 | 12 |
| Oct. 1 | at | *Northwestern (5-4) | W | 42 | 0 |
| Oct. 8 | at | *Michigan State (6-2-1) | W | 27 | 15 |
| Oct. 15 | vs | *Wisconsin (4-5) | W | 28 | 21 |
| Oct. 22 | vs | *Purdue (4-4-1) | W | 21 | 14 |
| Oct. 29 | vs | Kansas (7-2-1) | W | 21 | 7 |
| Nov. 5 | at | *Minnesota (8-2) | L | 10 | 27 |
| Nov. 12 | vs | *Ohio State (7-2) | W | 35 | 12 |
| Nov. 19 | at | Notre Dame (2-8) | W | 28 | 0 |
| | 8-1-0 | | 234 | 108 |
| 1959-Iowa (Big Ten) |
| Sep. 26 | at | California (2-8) | W | 42 | 12 |
| Oct. 3 | vs | *Northwestern (6-3) | L | 10 | 14 |
| Oct. 10 | vs | *Michigan State (5-4) | W | 37 | 8 |
| Oct. 17 | at | *Wisconsin (7-3) | L | 16 | 25 |
| Oct. 24 | at | *Purdue (5-2-2) | L | 7 | 14 |
| Oct. 31 | vs | Kansas State (2-8) | W | 53 | 0 |
| Nov. 7 | vs | *Minnesota (2-7) | W | 33 | 0 |
| Nov. 14 | at | *Ohio State (3-5-1) | W | 16 | 7 |
| Nov. 21 | vs | Notre Dame (5-5) | L | 19 | 20 |
| | 5-4-0 | | 233 | 100 |
| 1958-Iowa (Big Ten) |
| Sep. 27 | vs | Texas Christian (8-2-1) | W | 17 | 0 |
| Oct. 4 | vs | Air Force (9-0-2) | T | 13 | 13 |
| Oct. 11 | vs | *Indiana (5-3-1) | W | 34 | 13 |
| Oct. 18 | at | *Wisconsin (7-1-1) | W | 20 | 9 |
| Oct. 25 | vs | *Northwestern (5-4) | W | 26 | 20 |
| Nov. 1 | at | *Michigan (2-6-1) | W | 37 | 14 |
| Nov. 8 | at | *Minnesota (1-8) | W | 28 | 6 |
| Nov. 15 | vs | *Ohio State (6-1-2) | L | 28 | 38 |
| Nov. 22 | vs | Notre Dame (6-4) | W | 31 | 21 |
| Jan. 1 | vs | California (7-4) | W | 38 | 12 | at Pasadena, CA | Rose Bowl |
| | 8-1-1 | | 272 | 146 |
| 1957-Iowa (Big Ten) |
| Sep. 28 | vs | Utah State (2-7-1) | W | 70 | 14 |
| Oct. 5 | vs | Washington State (6-4) | W | 20 | 13 |
| Oct. 12 | at | *Indiana (1-8) | W | 47 | 7 |
| Oct. 19 | vs | *Wisconsin (6-3) | W | 21 | 7 |
| Oct. 26 | at | *Northwestern (0-9) | W | 6 | 0 |
| Nov. 2 | at | *Michigan (5-3-1) | T | 21 | 21 |
| Nov. 9 | vs | *Minnesota (4-5) | W | 44 | 20 |
| Nov. 16 | at | *Ohio State (9-1) | L | 13 | 17 |
| Nov. 23 | at | Notre Dame (7-3) | W | 21 | 13 |
| | 7-1-1 | | 263 | 112 |
| 1956-Iowa (Big Ten) |
| Sep. 29 | at | *Indiana (3-6) | W | 27 | 0 |
| Oct. 6 | vs | Oregon State (7-3-1) | W | 14 | 13 |
| Oct. 13 | vs | *Wisconsin (1-5-3) | W | 13 | 7 |
| Oct. 20 | vs | Hawaii ( ) | W | 34 | 0 |
| Oct. 27 | at | *Purdue (3-4-2) | W | 21 | 20 |
| Nov. 3 | vs | *Michigan (7-2) | L | 14 | 17 |
| Nov. 10 | at | *Minnesota (6-1-2) | W | 7 | 0 |
| Nov. 17 | vs | *Ohio State (6-3) | W | 6 | 0 |
| Nov. 24 | vs | Notre Dame (2-8) | W | 48 | 8 |
| Jan. 1 | vs | Oregon State (7-3-1) | W | 35 | 19 | at Pasadena, CA | Rose Bowl |
| | 9-1-0 | | 219 | 84 |
| 1955-Iowa (Big Ten) |
| Sep. 24 | vs | Kansas State (4-6) | W | 28 | 7 |
| Oct. 1 | at | *Wisconsin (4-5) | L | 14 | 37 |
| Oct. 8 | vs | *Indiana (3-6) | W | 20 | 6 |
| Oct. 15 | vs | *Purdue (5-3-1) | T | 20 | 20 |
| Oct. 21 | at | UCLA (9-2) | L | 13 | 33 |
| Oct. 29 | at | *Michigan (7-2) | L | 21 | 33 |
| Nov. 5 | vs | *Minnesota (3-6) | W | 26 | 0 |
| Nov. 12 | at | *Ohio State (7-2) | L | 10 | 20 |
| Nov. 19 | at | Notre Dame (8-2) | L | 14 | 17 |
| | 3-5-1 | | 166 | 173 |
| 1954-Iowa (Big Ten) |
| Sep. 25 | vs | *Michigan State (3-6) | W | 14 | 10 |
| Oct. 2 | vs | Montana (3-6) | W | 48 | 6 |
| Oct. 9 | at | *Michigan (6-3) | L | 13 | 14 |
| Oct. 16 | at | *Ohio State (10-0) | L | 14 | 20 |
| Oct. 23 | at | *Indiana (3-6) | W | 27 | 14 |
| Oct. 30 | vs | *Wisconsin (7-2) | W | 13 | 7 |
| Nov. 6 | vs | *Purdue (5-3-1) | W | 25 | 14 |
| Nov. 13 | at | *Minnesota (7-2) | L | 20 | 22 |
| Nov. 20 | vs | Notre Dame (9-1) | L | 18 | 34 |
| | 5-4-0 | | 192 | 141 |
| 1953-Iowa (Big Ten) |
| Sep. 26 | vs | *Michigan State (9-1) | L | 7 | 21 |
| Oct. 3 | vs | Washington State (4-6) | W | 54 | 12 |
| Oct. 10 | at | *Michigan (6-3) | L | 13 | 14 |
| Oct. 17 | vs | Wyoming (5-4-1) | W | 21 | 7 |
| Oct. 24 | vs | *Indiana (2-7) | W | 19 | 13 |
| Oct. 31 | at | *Wisconsin (6-2-1) | L | 6 | 10 |
| Nov. 7 | at | *Purdue (2-7) | W | 26 | 0 |
| Nov. 14 | vs | *Minnesota (4-4-1) | W | 27 | 0 |
| Nov. 21 | at | Notre Dame (9-0-1) | T | 14 | 14 |
| | 5-3-1 | | 187 | 91 |
| 1952-Iowa (Western) |
| Sep. 27 | at | Pittsburgh (6-3) | L | 14 | 26 |
| Oct. 4 | at | *Indiana (2-7) | L | 13 | 20 |
| Oct. 11 | at | *Purdue (4-3-2) | L | 14 | 41 |
| Oct. 18 | vs | *Wisconsin (6-3-1) | L | 13 | 42 |
| Oct. 25 | vs | *Ohio State (6-3) | W | 8 | 0 |
| Nov. 1 | at | *Minnesota (4-3-2) | L | 7 | 17 |
| Nov. 8 | vs | *Illinois (4-5) | L | 13 | 33 |
| Nov. 15 | at | *Northwestern (2-6-1) | W | 39 | 14 |
| Nov. 22 | vs | Notre Dame (7-2-1) | L | 0 | 27 |
| | 2-7-0 | | 121 | 220 |
| 1951-Iowa (Western) |
| Sep. 29 | vs | Kansas State (1-7-1) | W | 16 | 0 |
| Oct. 6 | at | *Purdue (5-4) | L | 30 | 34 |
| Oct. 13 | vs | Pittsburgh (3-7) | W | 34 | 17 |
| Oct. 20 | vs | *Michigan (4-5) | L | 0 | 21 |
| Oct. 27 | at | *Ohio State (4-3-2) | L | 21 | 47 |
| Nov. 3 | vs | *Minnesota (2-6-1) | T | 20 | 20 |
| Nov. 10 | at | *Illinois (9-0-1) | L | 13 | 40 |
| Nov. 17 | at | *Wisconsin (7-1-1) | L | 7 | 34 |
| Nov. 24 | at | Notre Dame (7-2-1) | T | 20 | 20 |
| | 2-5-2 | | 161 | 233 |
| 1950-Iowa (Western) |
| Sep. 29 | at | Southern California (2-5-2) | W | 20 | 14 |
| Oct. 7 | at | *Indiana (3-5-1) | L | 7 | 20 |
| Oct. 14 | vs | *Wisconsin (6-3) | L | 0 | 14 |
| Oct. 21 | vs | *Purdue (2-7) | W | 33 | 21 |
| Oct. 28 | at | *Ohio State (6-3) | L | 21 | 83 |
| Nov. 4 | at | *Minnesota (1-7-1) | W | 13 | 0 |
| Nov. 11 | vs | *Illinois (7-2) | L | 7 | 21 |
| Nov. 18 | vs | Notre Dame (4-4-1) | T | 14 | 14 |
| Nov. 24 | at | Miami (Florida) (9-1-1) | L | 6 | 14 |
| | 3-5-1 | | 121 | 201 |
| 1949-Iowa (Western) |
| Sep. 24 | vs | UCLA (6-3) | L | 25 | 41 |
| Oct. 1 | at | *Purdue (4-5) | W | 21 | 7 |
| Oct. 8 | vs | *Illinois (3-4-2) | L | 14 | 20 |
| Oct. 15 | vs | *Indiana (1-8) | W | 35 | 9 |
| Oct. 22 | vs | *Northwestern (4-5) | W | 28 | 21 |
| Oct. 29 | vs | Oregon (4-6) | W | 34 | 31 |
| Nov. 5 | at | *Minnesota (7-2) | L | 7 | 55 |
| Nov. 12 | at | *Wisconsin (5-3-1) | L | 13 | 35 |
| Nov. 19 | at | Notre Dame (10-0) | L | 7 | 28 |
| | 4-5-0 | | 184 | 247 |
| 1948-Iowa (Western) |
| Sep. 25 | vs | Marquette (2-8) | W | 14 | 12 |
| Oct. 2 | at | *Indiana (2-7) | L | 0 | 7 |
| Oct. 9 | at | *Ohio State (6-3) | W | 14 | 7 |
| Oct. 16 | vs | *Purdue (3-6) | L | 13 | 20 |
| Oct. 23 | vs | Notre Dame (9-0-1) | L | 12 | 27 |
| Oct. 30 | vs | *Wisconsin (2-7) | W | 19 | 13 |
| Nov. 6 | at | *Illinois (3-6) | L | 0 | 14 |
| Nov. 13 | vs | *Minnesota (7-2) | L | 21 | 28 |
| Nov. 20 | at | Boston University (6-2) | W | 34 | 14 |
| | 4-5-0 | | 127 | 142 |
| 1947-Iowa (Western) |
| Sep. 20 | vs | North Dakota State ( ) | W | 59 | 0 |
| Sep. 26 | at | UCLA (5-4) | L | 7 | 22 |
| Oct. 4 | vs | *Illinois (5-3-1) | L | 12 | 35 |
| Oct. 11 | vs | *Indiana (5-3-1) | W | 27 | 14 |
| Oct. 18 | at | *Ohio State (2-6-1) | T | 13 | 13 |
| Oct. 25 | at | Notre Dame (9-0) | L | 0 | 21 |
| Nov. 1 | at | *Purdue (5-4) | L | 0 | 21 |
| Nov. 8 | at | *Wisconsin (5-3-1) | L | 14 | 46 |
| Nov. 15 | vs | *Minnesota (6-3) | W | 13 | 7 |
| | 3-5-1 | | 145 | 179 |
| 1946-Iowa (Western) |
| Sep. 21 | vs | North Dakota State ( ) | W | 39 | 0 |
| Sep. 28 | vs | *Purdue (2-6-1) | W | 16 | 0 |
| Oct. 5 | at | *Michigan (6-2-1) | L | 7 | 14 |
| Oct. 12 | vs | Nebraska (3-6) | W | 21 | 7 |
| Oct. 19 | at | *Indiana (6-3) | W | 13 | 0 |
| Oct. 26 | vs | Notre Dame (8-0-1) | L | 6 | 41 |
| Nov. 2 | vs | *Illinois (8-2) | L | 0 | 7 |
| Nov. 9 | at | *Wisconsin (4-5) | W | 21 | 7 |
| Nov. 16 | at | *Minnesota (5-4) | L | 6 | 16 |
| | 5-4-0 | | 129 | 92 |
| 1945-Iowa (Western) |
| Sep. 29 | vs | Berg Field ( ) | W | 14 | 13 |
| Oct. 6 | at | *Ohio State (7-2) | L | 0 | 42 |
| Oct. 13 | at | *Purdue (7-3) | L | 0 | 40 |
| Oct. 20 | vs | *Indiana (9-0-1) | L | 20 | 52 |
| Oct. 27 | at | Notre Dame (7-2-1) | L | 0 | 56 |
| Nov. 3 | vs | *Wisconsin (3-4-2) | L | 7 | 27 |
| Nov. 10 | at | *Illinois (2-6-1) | L | 7 | 48 |
| Nov. 17 | vs | *Minnesota (4-5) | W | 20 | 19 |
| Nov. 24 | at | Nebraska (4-5) | L | 6 | 13 |
| | 2-7-0 | | 74 | 310 |
| 1944-Iowa (Western) |
| Oct. 7 | at | *Ohio State (9-0) | L | 0 | 34 |
| Oct. 14 | at | *Illinois (5-4-1) | L | 6 | 40 |
| Oct. 21 | vs | *Purdue (5-5) | L | 7 | 26 |
| Oct. 28 | at | *Indiana (7-3) | L | 0 | 32 |
| Nov. 4 | vs | Nebraska (2-6) | W | 27 | 6 |
| Nov. 11 | at | *Wisconsin (3-6) | L | 7 | 26 |
| Nov. 18 | vs | *Minnesota (5-3-1) | L | 0 | 46 |
| Nov. 25 | vs | Iowa Pre-Flight (10-1) | L | 6 | 30 |
| | 1-7-0 | | 53 | 240 |
| 1943-Iowa (Western) |
| Sep. 25 | at | Great Lakes Navy (10-2) | L | 7 | 21 |
| Oct. 2 | vs | *Wisconsin (1-9) | L | 5 | 7 |
| Oct. 9 | vs | Iowa Pre-Flight (9-1) | L | 0 | 25 |
| Oct. 16 | vs | *Indiana (4-4-2) | T | 7 | 7 |
| Oct. 23 | at | *Purdue (9-0) | L | 7 | 28 |
| Nov. 6 | vs | *Illinois (3-7) | L | 10 | 19 |
| Nov. 13 | at | *Minnesota (5-4) | L | 14 | 33 |
| Nov. 20 | at | Nebraska (2-6) | W | 33 | 13 |
| | 1-6-1 | | 83 | 153 |
| 1942-Iowa (Western) |
| Sep. 19 | vs | Washington (Missouri) (5-5) | W | 26 | 7 |
| Sep. 26 | vs | Nebraska (3-7) | W | 27 | 0 |
| Oct. 3 | vs | Great Lakes Navy (8-3-1) | L | 0 | 25 |
| Oct. 10 | vs | Camp Grant ( ) | W | 33 | 16 |
| Oct. 17 | vs | *Illinois (6-4) | L | 7 | 12 |
| Oct. 24 | at | *Indiana (7-3) | W | 14 | 13 |
| Oct. 31 | vs | *Purdue (1-8) | W | 13 | 7 |
| Nov. 7 | vs | *Wisconsin (8-1-1) | W | 6 | 0 |
| Nov. 14 | at | *Minnesota (5-4) | L | 7 | 27 |
| Nov. 28 | at | *Michigan (7-3) | L | 14 | 28 |
| | 6-4-0 | | 147 | 135 |
| 1941-Iowa (Western) |
| Sep. 27 | vs | Drake (4-5-1) | W | 25 | 8 |
| Oct. 4 | at | *Michigan (6-1-1) | L | 0 | 6 |
| Oct. 18 | at | *Wisconsin (3-5) | L | 0 | 23 |
| Oct. 25 | at | *Purdue (2-5-1) | L | 6 | 7 |
| Nov. 1 | vs | *Indiana (2-6) | W | 13 | 7 |
| Nov. 8 | at | *Illinois (2-6) | W | 21 | 0 |
| Nov. 15 | vs | *Minnesota (8-0) | L | 13 | 34 |
| Nov. 22 | at | Nebraska (4-5) | L | 13 | 14 |
| | 3-5-0 | | 91 | 99 |
| 1940-Iowa (Western) |
| Oct. 5 | vs | South Dakota ( ) | W | 46 | 0 |
| Oct. 12 | vs | *Wisconsin (4-4) | W | 30 | 12 |
| Oct. 19 | at | *Indiana (3-5) | L | 6 | 10 |
| Oct. 26 | at | *Minnesota (8-0) | L | 6 | 34 |
| Nov. 2 | vs | *Purdue (2-6) | L | 6 | 21 |
| Nov. 9 | at | Nebraska (8-2) | L | 6 | 14 |
| Nov. 16 | at | Notre Dame (7-2) | W | 7 | 0 |
| Nov. 23 | vs | *Illinois (1-7) | W | 18 | 7 |
| | 4-4-0 | | 125 | 98 |
| 1939-Iowa (Western) |
| Sep. 30 | vs | South Dakota ( ) | W | 41 | 0 |
| Oct. 7 | vs | *Indiana (2-4-2) | W | 32 | 29 |
| Oct. 14 | at | *Michigan (6-2) | L | 7 | 27 |
| Oct. 28 | at | *Wisconsin (1-6-1) | W | 19 | 13 |
| Nov. 4 | at | *Purdue (3-3-2) | W | 4 | 0 |
| Nov. 11 | vs | Notre Dame (7-2) | W | 7 | 6 |
| Nov. 18 | vs | *Minnesota (3-4-1) | W | 13 | 9 |
| Nov. 25 | at | *Northwestern (3-4-1) | T | 7 | 7 |
| | 6-1-1 | | 130 | 91 |
| 1938-Iowa (Western) |
| Sep. 23 | at | UCLA (7-4-1) | L | 3 | 27 |
| Oct. 8 | vs | *Wisconsin (5-3) | L | 13 | 31 |
| Oct. 15 | at | *Chicago (1-6-1) | W | 27 | 14 |
| Oct. 22 | vs | Colgate (2-5) | L | 0 | 14 |
| Oct. 29 | vs | *Purdue (5-1-2) | T | 0 | 0 |
| Nov. 5 | at | *Minnesota (6-2) | L | 0 | 28 |
| Nov. 12 | at | *Indiana (1-6-1) | L | 3 | 7 |
| Nov. 19 | vs | Nebraska (3-5-1) | L | 0 | 14 |
| | 1-6-1 | | 46 | 135 |
| 1937-Iowa (Western) |
| Sep. 25 | at | Washington (7-2-2) | L | 0 | 14 |
| Oct. 9 | vs | Bradley ( ) | W | 14 | 7 |
| Oct. 16 | at | *Wisconsin (4-3-1) | L | 6 | 13 |
| Oct. 23 | vs | *Michigan (4-4) | L | 6 | 7 |
| Oct. 30 | at | *Purdue (4-3-1) | L | 0 | 13 |
| Nov. 6 | vs | *Minnesota (6-2) | L | 10 | 35 |
| Nov. 13 | vs | *Indiana (5-3) | L | 0 | 3 |
| Nov. 20 | at | Nebraska (6-1-2) | L | 0 | 28 |
| | 1-7-0 | | 36 | 120 |
| 1936-Iowa (Western) |
| Sep. 26 | vs | Carleton ( ) | W | 14 | 0 |
| Oct. 3 | at | *Northwestern (7-1) | L | 7 | 18 |
| Oct. 10 | vs | South Dakota ( ) | W | 33 | 7 |
| Oct. 17 | vs | *Illinois (4-3-1) | T | 0 | 0 |
| Oct. 31 | at | *Indiana (5-2-1) | L | 6 | 13 |
| Nov. 7 | at | *Minnesota (7-1) | L | 0 | 52 |
| Nov. 14 | vs | *Purdue (5-2-1) | L | 0 | 13 |
| Nov. 21 | at | Temple (6-3-2) | W | 25 | 0 |
| | 3-4-1 | | 85 | 103 |
| 1935-Iowa (Western) |
| Sep. 28 | vs | Bradley ( ) | W | 26 | 0 |
| Oct. 5 | vs | South Dakota ( ) | W | 47 | 2 |
| Oct. 12 | vs | Colgate (5-3) | W | 12 | 6 |
| Oct. 26 | at | *Illinois (3-5) | W | 19 | 0 |
| Nov. 2 | vs | *Indiana (4-3-1) | T | 6 | 6 |
| Nov. 9 | vs | *Minnesota (8-0) | L | 6 | 13 |
| Nov. 16 | at | *Purdue (4-4) | L | 6 | 12 |
| Nov. 23 | at | *Northwestern (4-3-1) | T | 0 | 0 |
| | 4-2-2 | | 122 | 39 |
| 1934-Iowa (Western) |
| Sep. 29 | vs | South Dakota ( ) | W | 34 | 0 |
| Oct. 6 | at | *Northwestern (3-5) | W | 20 | 7 |
| Oct. 13 | at | Nebraska (6-3) | L | 13 | 14 |
| Oct. 20 | at | Iowa State (5-3-1) | L | 6 | 31 |
| Oct. 28 | vs | *Minnesota (8-0) | L | 12 | 48 |
| Nov. 3 | at | *Indiana (3-3-2) | T | 0 | 0 |
| Nov. 10 | vs | *Purdue (5-3) | L | 6 | 13 |
| Nov. 24 | at | *Ohio State (7-1) | L | 7 | 40 |
| | 2-5-1 | | 98 | 153 |
| 1933-Iowa (Western) |
| Oct. 7 | vs | *Northwestern (1-5-2) | W | 7 | 0 | at Chicago, IL |
| Oct. 14 | vs | Bradley ( ) | W | 38 | 0 |
| Oct. 21 | vs | *Wisconsin (2-5-1) | W | 26 | 7 |
| Oct. 28 | at | *Minnesota (4-0-4) | L | 7 | 19 |
| Nov. 4 | vs | Iowa State (3-5-1) | W | 27 | 7 |
| Nov. 11 | at | *Michigan (7-0-1) | L | 6 | 10 |
| Nov. 18 | at | *Purdue (6-1-1) | W | 14 | 6 |
| Nov. 25 | at | Nebraska (8-1) | L | 6 | 7 |
| | 5-3-0 | | 131 | 56 |
| 1932-Iowa (Western) |
| Oct. 1 | vs | Bradley ( ) | W | 31 | 7 |
| Oct. 8 | at | *Wisconsin (6-1-1) | L | 0 | 34 |
| Oct. 16 | at | *Indiana (3-4-1) | L | 0 | 12 |
| Oct. 22 | vs | *Minnesota (5-3) | L | 6 | 21 |
| Oct. 28 | at | George Washington (6-2-1) | L | 6 | 21 |
| Nov. 5 | vs | Nebraska (7-1-1) | L | 13 | 14 |
| Nov. 12 | vs | *Purdue (7-0-1) | L | 0 | 18 |
| Nov. 19 | at | *Northwestern (3-4-1) | L | 6 | 44 |
| | 1-7-0 | | 62 | 171 |
| 1931-Iowa (Western) |
| Oct. 3 | vs | Pittsburgh (8-1) | L | 0 | 20 |
| Oct. 10 | vs | Texas A&M (7-3) | L | 0 | 29 | at Dallas, TX |
| Oct. 17 | vs | *Indiana (2-5-1) | T | 0 | 0 |
| Oct. 24 | at | *Minnesota (7-3) | L | 0 | 34 |
| Oct. 31 | vs | George Washington ( ) | W | 7 | 0 |
| Nov. 7 | at | Nebraska (8-2) | L | 0 | 7 |
| Nov. 14 | at | *Purdue (9-1) | L | 0 | 22 |
| Nov. 21 | vs | *Northwestern (7-1-1) | L | 0 | 19 |
| | 1-6-1 | | 7 | 131 |
| 1930-Iowa (Western) |
| Sep. 27 | vs | Bradley ( ) | W | 38 | 12 |
| Oct. 4 | vs | Oklahoma State (7-2-1) | L | 0 | 6 |
| Oct. 11 | vs | Centenary (8-1-1) | L | 12 | 19 |
| Oct. 18 | vs | *Purdue (6-2) | L | 0 | 20 |
| Nov. 1 | at | Detroit Mercy (5-3-2) | W | 7 | 3 |
| Nov. 8 | at | Marquette (8-0-1) | L | 0 | 7 |
| Nov. 15 | vs | Penn State (3-4-2) | W | 19 | 0 |
| Nov. 22 | vs | Nebraska (4-3-2) | W | 12 | 7 |
| | 4-4-0 | | 88 | 74 |
| 1929-Iowa (Western) |
| Sep. 29 | vs | Carroll (Wisconsin) ( ) | W | 46 | 0 |
| Oct. 6 | vs | Monmouth ( ) | W | 46 | 0 |
| Oct. 13 | at | *Ohio State (4-3-1) | L | 6 | 7 |
| Oct. 20 | vs | *Illinois (6-1-1) | T | 7 | 7 |
| Oct. 26 | at | *Wisconsin (4-5) | W | 14 | 0 |
| Nov. 9 | vs | *Minnesota (6-2) | W | 9 | 7 |
| Nov. 16 | at | *Purdue (8-0) | L | 0 | 7 |
| Nov. 23 | at | *Michigan (5-3-1) | T | 0 | 0 |
| | 4-2-2 | | 128 | 28 |
| 1928-Iowa (Western) |
| Oct. 7 | vs | Monmouth ( ) | W | 26 | 0 |
| Oct. 13 | at | *Chicago (2-7) | W | 13 | 0 |
| Oct. 20 | vs | Ripon ( ) | W | 61 | 6 |
| Oct. 27 | vs | *Minnesota (6-2) | W | 7 | 6 |
| Nov. 3 | vs | South Dakota ( ) | W | 19 | 0 |
| Nov. 10 | at | *Ohio State (5-2-1) | W | 14 | 7 |
| Nov. 17 | vs | *Wisconsin (7-1-1) | L | 0 | 13 |
| Nov. 24 | at | *Michigan (3-4-1) | L | 7 | 10 |
| | 6-2-0 | | 147 | 42 |
| 1927-Iowa (Western) |
| Oct. 1 | vs | Monmouth ( ) | W | 32 | 6 |
| Oct. 8 | vs | *Ohio State (4-4) | L | 6 | 13 |
| Oct. 15 | vs | Wabash ( ) | W | 38 | 0 |
| Oct. 22 | at | *Minnesota (6-0-2) | L | 0 | 38 |
| Oct. 29 | vs | Denver (5-2) | W | 15 | 0 |
| Nov. 5 | vs | *Illinois (7-0-1) | L | 0 | 14 |
| Nov. 12 | at | *Wisconsin (4-4) | W | 16 | 0 |
| Nov. 19 | at | *Northwestern (4-4) | L | 0 | 12 |
| | 4-4-0 | | 107 | 83 |
| 1926-Iowa (Western) |
| Oct. 2 | vs | Northern Colorado (6-4) | W | 24 | 0 |
| Oct. 9 | vs | North Dakota ( ) | W | 40 | 7 |
| Oct. 16 | at | *Illinois (6-2) | L | 6 | 13 |
| Oct. 23 | at | *Ohio State (7-1) | L | 6 | 23 |
| Oct. 30 | vs | Carroll (Wisconsin) ( ) | W | 21 | 0 |
| Nov. 6 | vs | *Minnesota (5-3) | L | 0 | 41 |
| Nov. 13 | at | *Wisconsin (5-2-1) | L | 10 | 20 |
| Nov. 20 | vs | *Northwestern (7-1) | L | 6 | 13 |
| | 3-5-0 | | 113 | 117 |
| 1925-Iowa (Western) |
| Oct. 3 | vs | Arkansas (4-4-1) | W | 25 | 0 |
| Oct. 10 | vs | St. Louis ( ) | W | 41 | 0 |
| Oct. 17 | vs | *Illinois (5-3) | W | 12 | 10 |
| Oct. 24 | at | *Ohio State (4-3-1) | W | 15 | 0 |
| Oct. 31 | vs | Wabash ( ) | W | 28 | 7 |
| Nov. 7 | vs | *Wisconsin (6-1-1) | L | 0 | 6 |
| Nov. 14 | at | *Minnesota (5-2-1) | L | 0 | 33 |
| Nov. 21 | at | Southern California (11-2) | L | 0 | 18 |
| | 5-3-0 | | 121 | 74 |
| 1924-Iowa (Western) |
| Oct. 4 | vs | Southeastern Oklahoma State ( ) | W | 43 | 0 |
| Oct. 11 | vs | *Ohio State (2-3-3) | T | 0 | 0 |
| Oct. 18 | vs | Lawrence ( ) | W | 13 | 5 |
| Oct. 25 | vs | *Minnesota (3-3-2) | W | 13 | 0 |
| Nov. 1 | at | *Illinois (6-1-1) | L | 0 | 36 |
| Nov. 8 | vs | Butler ( ) | W | 7 | 0 |
| Nov. 15 | at | *Wisconsin (2-3-3) | W | 21 | 7 |
| Nov. 22 | at | *Michigan (6-2) | W | 9 | 2 |
| | 6-1-1 | | 106 | 50 |
| 1923-Iowa (Western) |
| Sep. 29 | vs | Oklahoma State (2-8) | W | 20 | 0 |
| Oct. 6 | vs | Knox ( ) | W | 44 | 3 |
| Oct. 13 | vs | *Purdue (2-5-1) | W | 7 | 0 |
| Oct. 20 | vs | *Illinois (8-0) | L | 6 | 9 |
| Oct. 27 | at | *Ohio State (3-4-1) | W | 20 | 0 |
| Nov. 3 | vs | *Michigan (8-0) | L | 3 | 9 |
| Nov. 17 | at | *Minnesota (5-1-1) | L | 7 | 20 |
| Nov. 24 | at | *Northwestern (2-6) | W | 17 | 14 |
| | 5-3-0 | | 124 | 55 |
| 1922-Iowa (Western) |
| Oct. 7 | vs | Knox ( ) | W | 61 | 0 |
| Oct. 14 | at | Yale (6-3-1) | W | 6 | 0 |
| Oct. 21 | at | *Illinois (2-5) | W | 8 | 7 |
| Oct. 28 | vs | *Purdue (1-5-1) | W | 56 | 0 |
| Nov. 11 | vs | *Minnesota (3-3-1) | W | 28 | 14 |
| Nov. 18 | at | *Ohio State (3-4) | W | 12 | 9 |
| Nov. 25 | vs | *Northwestern (3-3-1) | W | 37 | 3 |
| | 7-0-0 | | 208 | 33 |
| 1921-Iowa (Western) |
| Oct. 1 | vs | Knox ( ) | W | 52 | 14 |
| Oct. 8 | vs | Notre Dame (10-1) | W | 10 | 7 |
| Oct. 15 | vs | *Illinois (3-4) | W | 14 | 2 |
| Oct. 29 | at | *Purdue (1-6) | W | 13 | 6 |
| Nov. 5 | at | *Minnesota (3-4) | W | 41 | 7 |
| Nov. 12 | vs | *Indiana (3-4) | W | 41 | 0 |
| Nov. 19 | at | *Northwestern (1-6) | W | 14 | 0 |
| | 7-0-0 | | 185 | 36 |
| 1920-Iowa (Western) |
| Oct. 2 | at | *Indiana (5-2) | W | 14 | 7 |
| Oct. 9 | vs | Cornell (Iowa) ( ) | W | 63 | 0 |
| Oct. 16 | at | *Illinois (5-2) | L | 3 | 20 |
| Oct. 23 | at | *Chicago (3-4) | L | 0 | 10 |
| Nov. 6 | vs | *Northwestern (3-4) | W | 20 | 0 |
| Nov. 13 | vs | *Minnesota (1-6) | W | 28 | 7 |
| Nov. 20 | at | Iowa State (4-4) | W | 14 | 10 |
| | 5-2-0 | | 142 | 54 |
| 1919-Iowa (Western) |
| Oct. 4 | vs | Nebraska (3-3-2) | W | 18 | 0 |
| Oct. 18 | at | *Illinois (6-1) | L | 7 | 9 |
| Oct. 25 | at | *Minnesota (4-2-1) | W | 9 | 6 |
| Nov. 1 | vs | South Dakota ( ) | W | 26 | 13 |
| Nov. 8 | at | *Northwestern (2-5) | W | 14 | 7 |
| Nov. 15 | at | *Chicago (5-2) | L | 6 | 9 |
| Nov. 22 | vs | Iowa State (5-2-1) | W | 10 | 0 |
| | 5-2-0 | | 90 | 44 |
| 1918-Iowa (Western) |
| Sep. 28 | vs | Great Lakes Navy (6-0-2) | L | 0 | 10 |
| Oct. 5 | at | Nebraska (2-3-1) | W | 12 | 0 |
| Oct. 12 | vs | Coe ( ) | W | 27 | 0 |
| Oct. 19 | vs | Cornell (Iowa) ( ) | W | 34 | 0 |
| Nov. 2 | vs | *Illinois (5-2) | L | 0 | 19 |
| Nov. 9 | vs | *Minnesota (5-2-1) | W | 6 | 0 |
| Nov. 16 | vs | Iowa State (0-3) | W | 21 | 0 |
| Nov. 23 | vs | *Northwestern (2-2-1) | W | 23 | 7 |
| Nov. 30 | at | Camp Dodge ( ) | T | 0 | 0 |
| | 6-2-1 | | 123 | 36 |
| 1917-Iowa (Western) |
| Oct. 6 | vs | Cornell (Iowa) ( ) | W | 22 | 13 |
| Oct. 13 | at | Nebraska (5-2) | L | 0 | 47 |
| Oct. 20 | vs | Grinnell ( ) | L | 0 | 10 |
| Oct. 27 | at | *Wisconsin (4-2-1) | L | 0 | 20 |
| Nov. 3 | at | Great Lakes Navy ( ) | L | 14 | 23 |
| Nov. 10 | vs | South Dakota ( ) | W | 35 | 0 |
| Nov. 17 | at | *Northwestern (5-2) | L | 14 | 25 |
| Nov. 24 | vs | Iowa State (5-2) | W | 6 | 3 |
| | 3-5-0 | | 91 | 141 |
| 1916-Iowa (Western) |
| Oct. 7 | vs | Cornell (Iowa) ( ) | W | 31 | 6 |
| Oct. 14 | vs | Grinnell ( ) | W | 17 | 7 |
| Oct. 21 | vs | *Purdue (2-4-1) | W | 24 | 6 |
| Nov. 4 | at | *Minnesota (6-1) | L | 0 | 67 |
| Nov. 10 | at | *Northwestern (6-1) | L | 13 | 20 |
| Nov. 18 | at | Iowa State (5-2-1) | W | 19 | 16 |
| Nov. 25 | vs | Nebraska (6-2) | L | 17 | 34 |
| | 4-3-0 | | 121 | 156 |
| 1915-Iowa (Western) |
| Oct. 2 | at | Cornell (Iowa) ( ) | W | 33 | 0 |
| Oct. 9 | at | Morningside ( ) | W | 17 | 6 |
| Oct. 16 | vs | *Northwestern (2-5) | W | 9 | 6 |
| Oct. 23 | at | *Minnesota (6-0-1) | L | 13 | 51 |
| Nov. 6 | at | *Purdue (3-3-1) | L | 13 | 19 |
| Nov. 13 | vs | Iowa State (6-2) | L | 0 | 16 |
| Nov. 20 | at | Nebraska (8-0) | L | 7 | 52 |
| | 3-4-0 | | 92 | 150 |
| 1914-Iowa (Western) |
| Oct. 3 | vs | Northern Iowa ( ) | W | 95 | 0 |
| Oct. 10 | vs | Cornell (Iowa) ( ) | W | 49 | 0 |
| Oct. 17 | at | *Chicago (4-2-1) | L | 0 | 7 |
| Oct. 24 | vs | *Minnesota (6-1) | L | 0 | 7 |
| Nov. 7 | at | *Northwestern (1-6) | W | 27 | 0 |
| Nov. 14 | at | Iowa State (4-3) | W | 26 | 6 |
| Nov. 21 | vs | Nebraska (7-0-1) | L | 7 | 16 |
| | 4-3-0 | | 204 | 36 |
| 1913-Iowa (Western) |
| Oct. 8 | vs | Northern Iowa ( ) | W | 45 | 3 |
| Oct. 15 | vs | Cornell (Iowa) ( ) | W | 76 | 0 |
| Oct. 18 | at | *Chicago (7-0) | L | 6 | 23 |
| Oct. 25 | at | *Northwestern (1-6) | W | 78 | 6 |
| Nov. 8 | vs | *Indiana (3-4) | W | 60 | 0 |
| Nov. 15 | vs | Iowa State (4-4) | W | 45 | 7 |
| Nov. 22 | at | Nebraska (8-0) | L | 0 | 12 |
| | 5-2-0 | | 310 | 51 |
| 1912-Iowa (Western) |
| Oct. 7 | vs | Northern Iowa ( ) | W | 35 | 7 |
| Oct. 12 | vs | Cornell (Iowa) ( ) | W | 31 | 0 |
| Oct. 19 | at | *Chicago (6-1) | L | 14 | 34 |
| Oct. 26 | at | *Minnesota (4-3) | L | 7 | 56 |
| Nov. 9 | at | *Indiana (2-5) | W | 13 | 6 |
| Nov. 16 | at | Iowa State (6-2) | W | 20 | 7 |
| Nov. 23 | vs | *Wisconsin (7-0) | L | 10 | 28 |
| | 4-3-0 | | 130 | 138 |
| 1911-Iowa (Western) |
| Oct. 14 | at | Morningside ( ) | W | 11 | 5 |
| Oct. 21 | at | Cornell (Iowa) ( ) | L | 0 | 3 |
| Oct. 28 | vs | *Minnesota (6-0-1) | L | 6 | 24 |
| Nov. 4 | at | *Wisconsin (5-1-1) | L | 0 | 12 |
| Nov. 11 | at | *Purdue (3-4) | W | 11 | 0 |
| Nov. 18 | vs | Iowa State (6-1-1) | L | 0 | 9 |
| Nov. 25 | vs | *Northwestern (3-4) | W | 6 | 0 |
| | 3-4-0 | | 34 | 53 |
| 1910-Iowa (Western & MVIAA) |
| Oct. 2 | vs | Morningside ( ) | W | 12 | 0 |
| Oct. 8 | at | *Northwestern (1-3-1) | L | 5 | 10 |
| Oct. 15 | at | +Missouri (4-2-2) | L | 0 | 5 |
| Oct. 22 | vs | *Purdue (1-5) | W | 16 | 0 |
| Nov. 5 | at | +Iowa State (4-4) | W | 2 | 0 |
| Nov. 12 | vs | +Drake (3-5) | W | 21 | 0 |
| Nov. 19 | at | +Washington (Missouri) (3-4) | W | 38 | 0 |
| | 5-2-0 | | 94 | 15 |
*=Western Conference games
+=MVIAA games
| 1909-Iowa (Western & MVIAA) |
| Oct. 2 | at | *Minnesota (6-1) | L | 0 | 41 |
| Oct. 9 | vs | Cornell (Iowa) ( ) | W | 3 | 0 |
| Oct. 23 | at | +Nebraska (3-3-2) | T | 6 | 6 |
| Oct. 30 | vs | +Missouri (7-0-1) | L | 12 | 13 |
| Nov. 6 | at | +Drake (7-1) | L | 14 | 17 |
| Nov. 13 | vs | +Iowa State (4-3-1) | W | 16 | 0 |
| Nov. 20 | at | +Kansas (8-1) | L | 7 | 20 |
| | 2-4-1 | | 58 | 97 |
*=Western Conference games
+=MVIAA games
| 1908-Iowa (Western & MVIAA) |
| Oct. 10 | vs | Coe ( ) | W | 92 | 0 |
| Oct. 17 | at | +Missouri (6-2) | L | 5 | 10 |
| Oct. 24 | at | Morningside ( ) | W | 16 | 0 |
| Oct. 31 | vs | +Nebraska (7-2-1) | L | 8 | 11 |
| Nov. 7 | at | *Illinois (5-1-1) | L | 0 | 22 |
| Nov. 14 | vs | +Drake (6-2) | L | 6 | 12 |
| Nov. 21 | vs | +Kansas (9-0) | L | 5 | 10 |
| | 2-5-0 | | 132 | 65 |
*=Western Conference games
+=MVIAA games
| 1907-Iowa (Western & MVIAA) |
| Oct. 19 | vs | +Missouri (7-2) | W | 21 | 6 |
| Oct. 26 | at | Drake (3-4-1) | W | 25 | 4 |
| Nov. 2 | vs | *Wisconsin (3-1-1) | L | 5 | 6 |
| Nov. 9 | vs | *Illinois (3-2) | W | 25 | 12 |
| Nov. 23 | at | Iowa State (6-2) | L | 14 | 20 |
| | 3-2-0 | | 90 | 48 |
*=Western Conference games
+=MVIAA games
| 1906-Iowa (Western) |
| Oct. 27 | vs | Missouri (5-2-1) | W | 26 | 4 |
| Nov. 3 | at | *Wisconsin (5-0) | L | 4 | 18 |
| Nov. 10 | vs | Coe ( ) | W | 15 | 12 |
| Nov. 24 | vs | Iowa State (9-1) | L | 0 | 2 |
| Nov. 29 | at | St. Louis ( ) | L | 0 | 39 |
| | 2-3-0 | | 45 | 75 |
| 1905-Iowa (Western) |
| Sep. 26 | vs | Coe (1-7-1) | W | 27 | 0 |
| Sep. 30 | vs | Monmouth ( ) | W | 40 | 0 |
| Oct. 7 | at | *Chicago (11-0) | L | 0 | 42 |
| Oct. 21 | at | *Minnesota (10-1) | L | 0 | 39 |
| Oct. 28 | vs | Northern Iowa ( ) | W | 41 | 5 |
| Nov. 4 | vs | Grinnell (7-2-1) | W | 46 | 0 |
| Nov. 11 | vs | Des Moines ( ) | W | 72 | 0 |
| Nov. 18 | vs | Drake (4-4) | W | 44 | 0 |
| Nov. 24 | at | Iowa State (6-3) | W | 8 | 0 |
| Nov. 30 | at | St. Louis ( ) | W | 31 | 0 |
| | 8-2-0 | | 309 | 86 |
| 1904-Iowa (Western) |
| Sep. 24 | vs | Coe ( ) | W | 17 | 0 |
| Sep. 27 | vs | Augustana (South Dakota) ( ) | W | 33 | 2 |
| Oct. 1 | vs | Cornell (Iowa) ( ) | W | 88 | 0 |
| Oct. 6 | at | Drake (5-4) | W | 17 | 0 |
| Oct. 15 | at | *Chicago (10-1-1) | L | 0 | 39 |
| Oct. 22 | vs | Northern Iowa ( ) | W | 11 | 5 |
| Oct. 29 | vs | Iowa State (7-2) | W | 10 | 6 |
| Nov. 5 | at | Nebraska (9-3) | L | 6 | 17 |
| Nov. 12 | vs | Grinnell (1-6-1) | W | 69 | 0 |
| Nov. 19 | at | *Illinois (9-2-1) | L | 0 | 29 |
| Nov. 24 | vs | *Minnesota (13-0) | L | 0 | 11 |
| | 7-4-0 | | 251 | 109 |
| 1903-Iowa (Western) |
| Sep. 27 | vs | Cornell (Iowa) (1-8) | W | 6 | 0 |
| Sep. 29 | vs | Coe ( ) | W | 16 | 0 |
| Oct. 3 | vs | Northern Iowa ( ) | W | 29 | 0 |
| Oct. 10 | vs | Drake (5-3) | W | 22 | 6 |
| Oct. 17 | at | *Minnesota (14-0-1) | L | 0 | 75 |
| Oct. 24 | at | Grinnell (5-4) | W | 17 | 0 |
| Oct. 31 | vs | Nebraska (11-0) | L | 6 | 17 |
| Nov. 6 | vs | Simpson (1-4) | W | 35 | 2 |
| Nov. 14 | at | Missouri (1-7-1) | W | 16 | 0 |
| Nov. 21 | vs | *Illinois (8-6) | W | 12 | 0 |
| Nov. 26 | at | Washington (Missouri) (4-4-1) | W | 12 | 2 |
| | 9-2-0 | | 171 | 102 |
| 1902-Iowa (Western) |
| Oct. 4 | vs | Northern Iowa ( ) | W | 26 | 5 |
| Oct. 11 | at | Drake (5-2-1) | W | 12 | 0 |
| Oct. 18 | at | Simpson (2-3) | W | 10 | 0 |
| Oct. 25 | vs | *Minnesota (9-2-1) | L | 0 | 34 |
| Nov. 1 | vs | Iowa State (6-3-1) | W | 12 | 6 |
| Nov. 8 | at | *Michigan (11-0) | L | 0 | 107 |
| Nov. 15 | at | Washington (Missouri) (2-6-1) | W | 61 | 0 |
| Nov. 20 | vs | Missouri (5-3) | L | 0 | 6 |
| Nov. 27 | at | *Illinois (10-2-1) | L | 0 | 80 |
| | 5-4-0 | | 121 | 238 |
| 1901-Iowa (Western) |
| Oct. 5 | vs | Northern Iowa ( ) | W | 16 | 0 |
| Oct. 11 | at | Drake (4-4) | W | 6 | 5 |
| Oct. 18 | vs | Iowa State (2-6-2) | W | 12 | 0 |
| Oct. 26 | at | *Minnesota (9-1-1) | L | 0 | 16 |
| Oct. 30 | vs | Coe ( ) | W | 11 | 0 |
| Nov. 2 | vs | Knox ( ) | W | 23 | 6 |
| Nov. 9 | vs | *Illinois (8-2) | L | 0 | 27 |
| Nov. 16 | vs | Grinnell (7-1-1) | W | 17 | 11 |
| Nov. 28 | vs | *Michigan (11-0) | L | 0 | 50 | at Chicago, IL |
| | 6-3-0 | | 85 | 115 |
| 1900-Iowa (Western) |
| Sep. 28 | vs | Upper Iowa ( ) | W | 57 | 0 |
| Oct. 6 | vs | Northern Iowa ( ) | W | 68 | 0 |
| Oct. 12 | vs | Simpson ( ) | W | 47 | 0 |
| Oct. 26 | vs | Drake (6-3) | W | 26 | 0 |
| Nov. 3 | at | *Chicago (9-5-1) | W | 17 | 0 |
| Nov. 10 | vs | *Michigan (7-2-1) | W | 28 | 5 | at Detroit, MI |
| Nov. 16 | vs | Grinnell (3-6) | W | 63 | 2 |
| Nov. 29 | at | *Northwestern (7-2-3) | T | 5 | 5 |
| | 7-0-1 | | 311 | 12 |
| 1899-Iowa (Independent) |
| Sep. 23 | vs | Northern Iowa ( ) | W | 22 | 0 |
| Oct. 7 | at | Chicago (16-0-2) | T | 5 | 5 |
| Oct. 14 | vs | William Penn ( ) | W | 35 | 0 |
| Oct. 21 | vs | Rush Medical ( ) | W | 17 | 0 |
| Oct. 28 | vs | Iowa State (5-4-1) | W | 5 | 0 |
| Nov. 4 | vs | Nebraska ( ) | W | 30 | 0 | at Omaha, NE |
| Nov. 11 | vs | Grinnell (7-2-1) | W | 16 | 0 |
| Nov. 18 | at | Knox (4-4-1) | W | 35 | 0 |
| Nov. 30 | vs | Illinois (3-5-1) | W | 58 | 0 | at Rock Island, IL |
| | 8-0-1 | | 223 | 5 |
