Mason was 7 of 14 from the floor with four 3-pointers, five rebounds and four assists for the Dukes (12-6, 2-3). Derrick Coulter scored 23 points with seven boards and nine assists, Eric James had 16 points and L.G. Gill added 12 points and 12 rebounds.
Duquesne use a 17-7 run early in the second half to build a 53-48 lead. Adams' 3-pointer with 10:21 to go put the Bonnies up by four, by Duquesne went on a 14-2 run, and then made 11 of 12 free throws in the last 1:24 to ice it.