Kerri Strug, Atlanta Olympics, 1996: The Vault Heard 'Round The World. It’s the second vault, but you kinda need to see the first for context.
Summary: Team USA is in position to win their first ever gymnastics team gold in a non-boycott Olympics (meaning, we’d have to beat the powerhouse Russian and Romanian teams). All they need is a solid score on the vault. Two athletes are left. First came the much-hyped superstar, Dominique Moceanu. She vaults, twice. And she falls, twice. That leaves everything up to the last team member, Kerri Strug.
Strug runs, vaults, and falls, the third USA fall in a row. And when she gets up, she’s limping. It appears that all hope is lost. But Strug walks back to the mat, loosening up her ankle, and runs for her second and final vault. She vaults…and nails the landing, on one leg. She collapses in pain, and later has to be carried to the medal stand by coach Bela Karolyi, but she sealed the victory, and won the gold. On one foot.