What is considered the biggest sporting upset of all time?

While opinions vary, the 1980 US Olympic hockey team's 'Miracle on Ice' victory over the Soviet Union is frequently cited as the greatest upset, given the Soviet team's dominant history and the amateur status of the American players.

What defines a sporting upset?

A sporting upset occurs when a significantly weaker or underdog competitor defeats a heavily favored opponent, often against widely held expectations, betting odds, or historical performance.

Is the 1990 Buster Douglas vs. Mike Tyson fight on the top 10 upsets list?

Yes, Buster Douglas's knockout of undefeated heavyweight champion Mike Tyson in 1990 is almost universally ranked among the biggest upsets, with Tyson being a 42-to-1 favorite.

What are some other top sporting upsets besides the Miracle on Ice?

Notable examples include Leicester City winning the 2015-16 English Premier League (5000-to-1 odds), the 2007 New York Giants over the undefeated New England Patriots in Super Bowl XLII, and Greece winning Euro 2004.

Do tennis upsets like Wimbledon first-round losses count among the biggest of all time?

Yes, major tennis upsets such as unseeded Goran Ivanišević winning Wimbledon 2001 or qualifier Ivo Karlović beating reigning champion Lleyton Hewitt are often mentioned, but they typically rank below team-sport or championship-defining upsets due to the nature of individual competition.

Top 10 Biggest Sporting Upsets of All Time

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Top 10 Biggest Sporting Upsets of All Time

Sport's greatest currency is the upset — the moment when probability collapses and the impossible becomes the scoreline. These ten events didn't just defy the odds; they rewrote the rules of what sporting competition can produce. From a band of American college students defeating the Soviet hockey machine in 1980 to a 5,000-to-1 shot claiming the Premier League title, these are the contests that made the world stop and stare, the ones that turned broadcasters speechless and bookmakers insolvent. Each entry is not merely a famous result but a seismic event whose tremors are still felt in its sport today.

2026167 viewsMar 28, 2026 Updated Sep 7, 2026

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#1
Miracle on Ice — USA vs USSR (1980)
The Miracle on Ice is the greatest upset in sports history. On 22 February 1980 at the Lake Placid Winter Olympics, a team of American college students and amateur players faced the Soviet Union, a dynasty that had won four straight Olympic gold medals and 32 consecutive tournament games. The Soviets had demolished an NHL All-Star team 6-0 months earlier and crushed the US 10-3 in an exhibition five days prior. Coached by Herb Brooks, the US team endured over 60 games of preparation, executing a tactical plan to disrupt the Soviet rhythm. With 10 minutes left and trailing 3-2, captain Mike Eruzione scored the go-ahead goal, securing a 4-3 victory. Broadcaster Al Michaels's call — "Do you believe in miracles? YES!" — echoed globally. The US won gold two days later against Finland. Sports Illustrated named it the greatest sports moment of the 20th century.
source: wikipedia
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#2
Buster Douglas Knocks Out Mike Tyson (1990)
Buster Douglas's knockout of Mike Tyson remains the defining moment of heavyweight boxing, with odds of 42-to-1 that are longer than Leicester City's 5,000-to-1 Premier League title odds in relative betting terms. On 11 February 1990 at the Tokyo Dome, Douglas faced Tyson, who was 37-0 with 33 knockouts and hadn't gone beyond four rounds in two years. Douglas had lost his mother ten days before the fight, yet grief sharpened his focus. For ten rounds, he outboxed, outjabbed, and outfought the champion. Tyson knocked him down in the eighth, but Douglas rose at the count of nine and resumed dominance. In the tenth, a four-punch combination sent Tyson crashing for the first knockdown of his career. Tyson couldn't beat the count. Bookmaker Caesar's Palace initially refused to pay, citing a long count, but the Nevada State Athletic Commission overruled them. This upset remains the standard for boxing shocks, more dramatic than Tyson's later loss to Lennox Lewis.
source: wikipedia
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#3
Leicester City Win the Premier League (2015-16)
Leicester City's 2015-16 Premier League title is mathematically the most improbable championship in football history, with odds of 5,000-to-1. The club had survived relegation on the final day of the previous season, and their entire squad cost roughly £70 million. Managed by Claudio Ranieri, powered by N'Golo Kanté's energy and Jamie Vardy's record-breaking 11-game goal streak, Leicester led the table from November to May. On 2 May 2016, while the owner celebrated at a Thai restaurant, Tottenham's draw with Chelsea confirmed Leicester as champions. The story has inspired multiple films and books, cementing its status as the greatest underdog achievement in sport.
source: wikipedia
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#4
Greece Win Euro 2004
Greece's Euro 2004 triumph ranks as the most astonishing sustained upset in international football, with odds of 150-to-1. Ranked 150th in the world, Greece had qualified for only one previous major tournament (Euro 1980) and lost every game. Managed by Otto Rehhagel, they deployed a suffocating defense that stymied Portugal (twice), France, and the Czech Republic. The 1-0 final win over Portugal at the Estadio da Luz, witnessed by 62,000 home fans, denied a Cristiano Ronaldo-inspired side. Angelos Charisteas headed the winner. Rehhagel wept at the final whistle. The squad celebrated by sailing around Athens for three days. UEFA later calculated Greece as the least likely winner in the tournament's 48-year history, a feat that remains unmatched in European Championships.
source: wikipedia
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#5
Appalachian State Beat Michigan (2007)
Appalachian State's 34-32 victory over fifth-ranked Michigan in 2007 stands as the definitive giant-killing in American college sports history. The Division I-AA Mountaineers, operating with a budget 80% smaller than Michigan's, became the first lower-division team ever to beat a top-five Division I-A opponent, ending Michigan's 233-game non-conference home winning streak in front of 109,000 stunned fans. The winning margin came via a blocked 37-yard field goal with 26 seconds remaining. This upset's seismic impact forced Michigan coach Lloyd Carr into retirement and permanently expanded ESPN's college football audience. No other single game has better demonstrated that institutional resources cannot guarantee on-field results, making this the benchmark for underdog triumphs in the sport.
source: wikipedia
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#6
UMBC Beat Virginia in the NCAA Tournament (2018)
UMBC's 74-54 demolition of top-seeded Virginia on March 16, 2018 shattered a 33-year-old myth that 16-seeds could never beat 1-seeds in the NCAA Tournament. The Retrievers, a 2,000-student institution, outperformed the historical average for such mismatches by a staggering 20-point margin, since prior 1-seeds held a perfect 135-0 record. Shooting 54% from the floor and hitting 12 of 24 three-pointers, UMBC dismantled the nation's most efficient defense, which had allowed the fewest points per possession. This victory busted every major tournament bracket instantly and is widely considered the greatest single-game upset in American sports history, surpassing even Appalachian State's feat due to its statistical implausibility and bracket-wide consequences.
source: wikipedia
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#7
Nadal Defeats Federer at Wimbledon 2008
Rafael Nadal's 6-4, 6-4, 6-7(5), 6-7(8), 9-7 triumph over five-time defending champion Roger Federer in the 2008 Wimbledon final is universally acclaimed as the greatest tennis match ever played, spanning 4 hours and 48 minutes. Nadal, primarily a clay-court specialist, dethroned the world No. 1 who had never lost a Grand Slam final on grass. The match featured two rain delays and a decisive tie-break won 9-7 in near darkness, with Nadal saving a crucial break point at 4-4 in the fifth set. Tennis legends John McEnroe and Pete Sampras both declared it the finest match they had witnessed, and the ATP, ITF, and WTA simultaneously named it match of the year—a distinction no other Wimbledon final has achieved. Its sustained quality and drama set a new standard for tennis excellence.
source: wikipedia
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#8
USA Beat England at the 1950 World Cup
The United States' 1-0 victory over England in the 1950 World Cup remains football's most stunning historical upset, featuring a team of part-time players, including a dishwasher and a postman, defeating the inventors of the sport. England, making their World Cup debut after years of self-imposed exclusion, were considered invincible, yet Joe Gaetjens' 37th-minute header, combined with goalkeeper Frank Borghi's heroic saves, sealed the win. The shock was so profound that European news agencies initially reported a 10-1 scoreline, assuming a typographical error. This defeat eliminated England from the group stage and set a benchmark for World Cup giant-killing, as it challenged the very foundations of global football hierarchy.
source: wikipedia
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#9
Senegal Beat France at the 2002 World Cup
Senegal's 1-0 victory over reigning champions France at the 2002 World Cup remains the tournament's most shocking opening-day result. France, boasting stars like Zidane and Henry, arrived as both world and European champions, widely considered the most talented squad ever assembled. In contrast, Senegal was making its World Cup debut. The decisive goal came in the 30th minute from Papa Bouba Diop, and despite France maintaining 65% possession, they couldn't find an equalizer. This defeat marked France's spectacular collapse—they were eliminated in the group stage without scoring a single goal.
source: wikipedia
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#10
Muhammad Ali Defeats George Foreman — Rumble in the Jungle (1974)
Muhammad Ali's improbable victory over George Foreman in the 1974 "Rumble in the Jungle" ranks as the most dramatic individual sports comeback of the 20th century. Ali, at 32 and considered a faded champion, faced a dominant Foreman with a 40-0 record and 37 knockouts. Foreman had demolished Joe Frazier and Ken Norton, who had beaten Ali, making him a commanding 4-to-1 favorite. Ali’s revolutionary "rope-a-dope" strategy involved absorbing Foreman’s blows for seven rounds before unleashing a perfectly timed combination in the eighth, dropping Foreman for the first knockdown of his career and reclaiming the heavyweight title.
source: wikipedia

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Frequently Asked Questions About the Biggest Sporting Upsets

What is the biggest upset in sports history? Most historians and fans point to the 1980 Miracle on Ice — when a team of American college students defeated the dominant Soviet hockey squad at the Lake Placid Winter Olympics — as the single greatest sporting upset ever recorded.

What makes a sporting result count as an upset? An upset occurs when a significantly lower-ranked or less-favoured competitor defeats a heavy favourite, especially when the pre-match odds gap is extreme. Every event on this list featured overwhelming odds against the eventual winner.

Which sporting upset had the longest odds? Leicester City's 2015-16 Premier League title is statistically the most improbable, with bookmakers offering 5,000-to-1 at the season's start — the longest-odds championship win in top-flight football history.