Creighton (9-3) opened the game on a 7-0 run and had its first double-digit lead seven minutes in. Chatman drilled a jumper at the buzzer to send the Bluejays into the locker room with a 41-27 advantage.
Chatman tossed in 20 points, connecting on 7 of 13 shots from the field and 2 of 6 from distance. Hegner was 6 of 11 from the field, 3 of 8 from beyond the arc, and pulled down six rebounds. Avery Dingman added 11 points.
Creighton shot 50 percent from the floor (30 of 60).