The Bulldogs (20-3, 10-1) led by four points at the half and shot just 35 percent from the field down the stretch, but sank 27-of-32 free throws to salt away their sixth straight win.
Gary Bell Jr. put in 13 points and Przemek Karnowski added 12 with eight rebounds.
The Dons (14-9, 7-4) were led by Avry Holmes with 18 points.
Mark Tollefsen totaled 15 to go with seven rebounds.
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