Player of the Year candidate Brittney Griner led Baylor to a 34-0 overall record, becoming the 12th team to enter the tournament undefeated. The Lady Bears faced little trouble while claiming the Big 12 Conference title.
They will top the Des Moines (Iowa) Region.
UConn (29-4) earned the top seed in the Kingston (R.I.) Region and will try for a fifth straight Final Four appearance after defeating Notre Dame in the Big East Tournament title game.
The Fresno (Calif.) Region's top seed is Stanford (31-1), which won the Pac-12 championship and comes into the tournament on a school-record 28-game winning streak.
The Fighting Irish (30-3) top the Raleigh (N.C.) Region, claiming their first No. 1 seed since 2001. That was also the year Notre Dame won its only national title.