The NFL introduced overtime for any divisional tiebreak games beginning in , and for championship games beginning in . The first postseason game to be played under these rules was the 1958 NFL Championship Game between the Baltimore Colts and New York Giants (the so-called "Greatest Game Ever Played"), decided by a one-yard touchdown run by Colts fullback Alan Ameche after eight minutes and fifteen seconds of extra time. Overtime under the original format was sudden death, the first team to score would be declared the winner.