The Cougars (11-4) rebounded from a loss to Gonzaga in the WCC opener Saturday, evening their conference record at 1-1.
Haws finished with 24 points on 8 of 20 shooting from the field and 7 of 8 from the line. Winder had 22 points, connecting on 10 of 14 from the field, and Collinsworth scored 21, shooting 9 of 13 from the free throw line, and grabbed eight boards.
BYU shot 50.8 percent from the field on 33-of-65 shooting and was 24 of 31 from the line.
Wintering scored 30 points to lead the Pilots, leading five players in double figure scoring.