Unbelievable Wins: 15 Underdog Triumphs That Shocked the Sports World

Buster Douglas Defeats Mike Tyson (1990)

In 1990, as a 42-1 underdog, James "Buster" Douglas stunned the world by knocking out undefeated heavyweight champion Mike Tyson in the 10th round. His unexpected victory is regarded as one of the greatest upsets in boxing history.