Jaxson Robinson scored 21 points off the bench to lead No. 19 BYU to a 90-88 victory over UCF on Tuesday night. Noah Waterman added 17 points and nine rebounds as the Cougars (18-6, 6-5 Big 12) won for the fourth time in five games. Trevin Knell also scored 17 and Dallin Hall had 10 points, five rebounds and five assists.