Bucknell (8-2, 4-1 Patriot) was nursing a narrow lead until the Crusaders' Connor Fitzgerald booted a 32-yard field goal with 4 seconds left to force overtime at 24-24.
It was the third straight week Bucknell wound up in OT.
Peter Pujals passed for 201 yards and ran for 44 with three TDs for Holy Cross (4-7, 2-3). The Crusaders scored on their last two possessions of regulation - Pujals running from the 6 after Holy Cross sacked Trey Lauletta and forced a fumble; Pujals also ran for 5 yards on a fourth-and-2 during the final 16-play drive resulting in Fiztgerald's field goal.
DelMauro had the answer each time, scoring from the 7 for a 24-21 lead, then the winner in OT.