Junior Jason Duty, who hit a career-high 20 points, canned a three-pointer with eight seconds left in overtime to put the Dukes up 98-97. Saint Joseph's Idris Hilliard got the tip as the buzzer was sounding to give the Hawks the one-point victory.
St. Joe's, which has now won its fifth straight game, is 10-7, 4-0 in league play. Duquesne is 12-6, 3-2 in the A-10.
Sharp-shooting Duquesne opened with an 11-point leads at 16-5 and 25-14 only to see Saint Joseph's 14-0 run put the Hawks ahead, 30-25, on the way to a 53-37 halftime edge.
Duquesne fought back and finally regained the lead via their own 14-0 run, 76-71. But St. Joe's scored the final six points to tie the game at 88-88 and force overtime.
Neither team led by more than two in the OT.
Saint Joseph's senior forward Ahmad Nivins led the victors with a career-best 34 points and 16 rebounds.
The Dukes next take on Fordham Sunday, January 25, 2009, at 1:00 p.m. in the Rose Hill Gym in the Bronx, N.Y.