The Dons (15-10, 8-5 West Coast Conference) took a 52-47 lead with 10:13 to go on a basket by Cole Dickerson. The Cougars (17-9, 9-4) clawed back to tie the score at 55-55 on Eric Mika’s free throw with 7:02 to go.
Haws hit a pair of free throws and later dropped in a jumper and Nate Austin slammed home an offensive rebound in between to give BYU a 61-55 edge with 4:27 remaining.
Haws and Kyle Collinsworth scored 19 points apiece for the Cougars. Mika finished with 13 points and 13 rebounds and Carlino had 11 points, nine assists and three steals. Austin had 16 boards, eight of them on the offensive end.
Derksen came off the bench to pace the Dons with 17 points on 7-of-8 shooting, including 3-of-3 from behind the arc. Mark Tollefsen had 12 points and Dickerson and Avry Holmes each scored 10, with Dickerson adding six rebounds. Matt Glover handed out four assists.
USF was 26-for-53 (49.1 percent) overall, 5-for-14 (35.7 percent) from long range and 6-for-11 (54.5 percent) from the free-throw line. BYU was 25-for-60 (41.7 percent), 4-for-14 (28.6 percent) and 14-for-29 (48.3 percent).
BYU had a huge edge on the glass, out-rebounding USF 47-29, with 20 boards on the offensive end. Both teams turned the ball over 13 times.
USF falls to fourth in the WCC, while BYU grabs sole possession of second place with the win.
USF is idle until Saturday, Feb. 15, when they visit Santa Clara at 8 p.m. Pacific.