- In the 1936 Summer Olympics in Berlin , Germany , Japan won against the favourite team Sweden, 3-2 in the soccer competition.
- In Super Bowl III , the New York Jets , led by quarterback Joe Namath , defeated the heavily favored Baltimore Colts 16-7.
- In 1972 , Top Professional side Newcastle United were beaten by then-amateur team Hereford United in the FA Cup replay after the two teams drew at Newcastle's home stadium, St. James' Park
- In 1980 , the United States hockey team consisting of amateurs and college players defeated the Olympic hockey superpower, the Soviet Union . The amazing upset was called the " Miracle On Ice "
- The 1985 Villanova University basketball team (8 seed) defeated the Georgetown University basketball team (1 seed) in the Men's NCAA Tournament Final
- Boxer James "Buster" Douglas , given Odds of 42-to-1 by one Las Vegas Sports Book , handed the previously-undefeated Mike Tyson his first ever professional defeat in Tokyo , Japan on February 11, 1990
- In the 1992 European Football Championship in Sweden , Denmark won the entire tournament. Denmark was a reserve team because of the Yugoslav Wars .
- In 1994, the Denver Nuggets (42-40; 8 seed) beat the Seattle Supersonics (64-18; 1 seed) in the first round of the playoffs.
- In 2002 , the New England Patriots defeated the St. Louis Rams 20-17 in Super Bowl XXXVI . In retrospect this seems less an underdog story because the Patriots went on to dominate the NFL for 3 more years, but at the time the Rams were favored by 14 points, making it the second largest upset in Super Bowl history.
- In 2001 , the hugely favored Iowa State University basketball team (2 seed) lost to the Hampton University basketball team (15 seed) in the first round of the NCAA Tournament
- In the 2002 Winter Olympics in Salt Lake City , Utah , USA , Belarus won, 3-2, over the favourite team from Sweden in the Men's Ice Hockey Competition .
- In the Football competition, Greece , which some sports books gave 150-1 odds to win at the start of the tournament, defeated the hosts Portugal in their opening match, the holders France , the favourites Czech Republic in the semifinals, and Portugal again in the final to complete a shocking win.
- In 2004, the Boston Red Sox were down three games to none against the heavily favored New York Yankees in the American League Championship Series , and the Red Sox won four games in a row to defeat the Yankees four games to three, en route winning their first World Series title in eighty-six years.
- In the 2005-06 NFL Playoffs , the Pittsburgh Steelers were the #6 seed in the AFC playoffs, and went on to pull off upsets at Cincinnati, Indianapolis, and Denver, en route to a controversial 21-10 victory over the Seattle Seahawks in Super Bowl XL . However, the Steelers were favoured to defeat the Seahawks in the Super Bowl.
- In April 2006, the WWE 's Rey Mysterio defeated Randy Orton & Kurt Angle to become the lightest and shortest World Heavyweight Champion ever.
- Although the George Mason Patriots did not win the 2006 NCAA Men's Basketball Tournament , making it as far as they did has been considered a victory in itself.
Underdogs often play the protagonist role in popular culture.
Most often - in Action Movies .
Contender
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