Drake's Graham Woodward opened overtime with a 3-pointer and, after Chris McNeal answered with a layup for his first basket of the game, Reed Timmer completed a 3-point play to give the Bulldogs a 74-70 lead.
Western Kentucky made a 3-pointer on its next three possessions, but Drake answer with two points each time. Timmer made 1 of 2 free throws with 8 seconds left and the Hilltoppers' Nigel Snipes missed a 3-pointer in the closing seconds.
Abrahamson was 13 of 23 from the field, with four 3-pointers, and made all 11 of his free throws for Drake (2-2). He had a long 3-pointer roll out just before the regulation buzzer.
Justin Johnson and Nigel Snipes had 15 points apiece for Western Kentucky (2-2).