Tyler Adams highlighted Harvard's game-ending, 11-play drive. He caught a pass over the middle in traffic on fourth-and-4 near midfield and, on the next play, grabbed a 30-yarder to give the Crimson first-and-goal with 1:02 left.
McIntyre made four field goals for Harvard (3-2), which has won eight straight home games in the series. Adams caught seven passes for 84 yards, including a 28-yard touchdown for a 30-14 lead.
Tom Stewart passed for 272 yards and two touchdowns and Aaron Shampklin rushed for 128 yards and a score for Harvard. Shampklin opened the scoring on the third play of the game with a 57-yard touchdown run.
Holy Cross (1-6) trailed 20-7, but rallied in the fourth quarter with 17 straight points for a 31-30 lead with 8:12 remaining.
Geoff Wade threw for two touchdowns and Domenic Cozier added two on the ground for Holy Cross.
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