Brown, the 6-foot-7 preseason Big 12 Player of the Year, had no problem with Lamar's much smaller inside players - none taller than 6-2. Baylor controlled inside, outscoring Lamar in the paint, 68-12. The Lady Bears also outrebounded Lamar, 62-29, and blocked eight shots.
Natalie Chou added 20 points and nine rebounds, Dekeiya Cohen had 16 points. Kristy Wallace scored 15 and Alexis Morris scored 12 for Baylor.
Chastadie Barrs scored 14 and Jaelyn Pimentel had 10 points for Lamar (0-1).
Lamar took an early lead, 10-7, but Baylor pulled away with a 25-2 run that left the Lady Bears up 34-12 with 1:48 left in the first quarter.
Baylor shot 63 percent (44-of-70) from the field and was 8-for-12 on its 3 point attempts.