McDermott pulled down seven rebounds and Austin Chatman sank 4-of-7 from 3-point range to finish with 16 points for the Bluejays (20-3, 9-2 MVC), who earned their 14th 20-win season in the last 15 years and 25th all-time.
Gregory Echenique scored 10 points for Creighton.
Dyricus Simms-Edwards put in 18 points and collected five rebounds for the Braves (13-10, 5-6), who got 15 points from Walt Lemon Jr. and 11 from Tyshon Pickett.
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