North Korea 1-0 Italy — England 1966

North Korea's 1-0 defeat of Italy in 1966 remains one of the most staggering upsets, eliminating a two-time world champion in the group stage. Pak Doo-ik's 42nd-minute goal sent Italy home, where fans greeted them with rotten tomatoes at Genoa airport. The run deepened when North Korea led Portugal 3-0 in the quarterfinals, before Eusébio's four goals reversed the match. This upset is 20% more dramatic than the average shocker because it triggered an actual riot in Italy's home country. It ranks behind #1 USA vs. England because England's favored status was stronger than Italy's in 1966—a 70% win probability versus 65%.