1. Leicester City winning the English Premier League in 2015/2016 – Starting the season as 5000/1 outsiders, Leicester City shocked the world by winning the title against all odds.
2. Buster Douglas defeating Mike Tyson – In 1990, Tyson was considered one of the greatest heavyweight boxers of all time. However, Douglas went on to knock him out, causing one of the biggest upsets in boxing history.
3. The Miracle on Ice – In the 1980 Winter Olympics, the United States hockey team, composed of amateur players, defeated the heavily favored Soviet Union team, which was known for its dominance in the sport.
4. Appalachian State defeating Michigan – In 2007, the Appalachian State Mountaineers, an FCS football team, upset the Michigan Wolverines, a major college football powerhouse, creating one of the biggest upsets in college football history.
5. Rulon Gardner defeating Aleksandr Karelin – At the 2000 Olympics, Karelin, an undefeated Greco-Roman wrestler, was considered nearly unbeatable. However, Gardner pulled off a stunning victory to win the gold medal.
6. The 1969 New York Mets winning the World Series – Beginning the season as 100-1 underdogs, the Mets went on to clinch the championship, surprising baseball fans around the world.
7. James “Buster” Douglas defeating Evander Holyfield – In 1990, Douglas pulled off another major upset by defeating Holyfield, who was undefeated and considered one of the best heavyweights in boxing.
8. Wimbledon 2016: Marcus Willis defeats Ricardas Berankis – Ranked 772nd in the world, Willis defeated Berankis, who was ranked 53rd, in the second round of Wimbledon. The odds against Willis winning were estimated at 2000/1.
9. The Miracle Mets defeating the Baltimore Orioles in the 1969 World Series – The Mets went on to win the World Series against the heavily favored Baltimore Orioles, leading to one of the greatest upsets in baseball history.
10. Monaco Grand Prix 1996: Olivier Panis wins – Starting in 14th position, Panis took advantage of race incidents and emerged victorious, becoming one of Formula 1’s biggest surprises.