Nadia Comăneci's Perfect 10 (1976)

At the 1976 Montreal Olympics, 14-year-old Nadia Comăneci scored the first-ever perfect 10, a feat the scoreboard couldn't display—requiring a 1.00 that read as 1.0. Her uneven bars routine earned a 10.0, outperforming Muhammad Ali's knockout in precision, as no gymnast had achieved this in 80 years of Olympic competition. Comăneci's 9.95 execution score on floor was 0.05 points higher than the average first-place finisher's total. She won three gold medals, a 75% increase from the typical Olympic champion's haul.