It's known in college football as the Fifth Down Game. The date was Nov. 16, 1940, and undefeated Cornell thought it had escaped Dartmouth's Memorial Field with a win. The Big Red, the defending national champion, had scored on a touchdown pass (left) in the final seconds for what appeared to be a 7–3 win.
But the next day, after the game film had been reviewed, it was clear that Cornell had scored on a fifth down it had been awarded when the referee lost track of the number of downs. When told of the mistake, the commissioner of the Eastern Collegiate Football Association ruled that the game was over and the result would stand. But Cornell coach Carl Snavely called a meeting and let his players decide. "We figured if [Dartmouth] won it, they won it, and that's the way it should be," said Cornell tackle Nick Drahos. School officials contacted Dartmouth the next week and forfeited the victory. Dartmouth was credited with a 3–0 win—and the athletic director wired Cornell in gratitude: "Dartmouth accepts the victory and your congratulations, and salutes the Cornell team, the honorable and honored opponent of her longest unbroken football rivalry."