Sports & Athletes

Greatest Underdog Championship Runs in Sports History

A collection of legendary moments where teams defied astronomical odds, overcoming heavily favored opponents to secure championship titles. This list highlights the resilience, strategy, and sheer willpower that defined these historic upsets across various major sports leagues.

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Items: 21
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1980 Philadelphia Phillies

Known as the 'WWA' or 'Winnipeg Phillies,' this team was expected to finish last. They rallied from a massive deficit to win the NL East and subsequently the World Series, overcoming a roster that was widely considered the worst in baseball.

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1992 Toronto Blue Jays

Despite being a relatively young franchise with a small market, they defeated the powerhouse Oakland Athletics in the ALCS and swept the Atlanta Braves. Their victory marked the first time a U.S.-based team won the World Series outside the United States.

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2004 Boston Red Sox

They completed the most improbable comeback in sports history by overturning a 3-0 deficit against the New York Yankees. They then swept the St. Louis Cardinals to break the 'Curse of the Bambino' and end an 86-year championship drought.

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2016 Chicago Cubs

Breaking a 108-year title drought, the Cubs rallied from a 3-1 deficit against the Golden State Warriors in the NBA? No, against the Cleveland Cavaliers in baseball. Their victory was sealed by Jon Lester, Kris Bryant, and an epic Game 7 win.

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2016 Cleveland Cavaliers

In one of the most dramatic series in NBA history, the Cavaliers overcame a 3-1 deficit against the 73-win Golden State Warriors. Led by LeBron James' iconic chase-down block and Game 7 heroics, they secured Cleveland's first major sports title in decades.

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1980s Miracle on Ice USA Hockey

A team of amateur and collegiate players defeated the dominant Soviet Union national team, which had won five consecutive Olympic gold medals. The victory became a symbol of hope during the Cold War and remains one of the greatest upsets in sports history.

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1999 New Jersey Devils

As the lowest seed to ever make the Stanley Cup Finals, the Devils defeated the heavily favored Dallas Stars in seven games. Their victory highlighted the power of disciplined defensive play and goaltending over star power.

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2004 Florida Panthers

As the eighth seed, they pulled off a stunning upset against the first-seeded New York Rangers in the first round of the playoffs. They became the lowest seed to win a first-round series at the time, showcasing intense physical play and resilience.

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2014 San Antonio Spurs

In the NBA Finals, the Spurs defeated the Miami Heat in five games despite being heavy underdogs after the Heat's 'Big Three' dominance. Their collective team basketball and defensive intensity neutralized Miami's offensive firepower effectively.

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1978 New York Giants

Coming off a 2-14 season the previous year, the Giants won the NFC East and went on to win Super Bowl IX? No, Super Bowl XXI. They defeated the Washington Redskins in a dominant fashion, marking a complete turnaround from their 'Sack City' failures.

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1979 Michigan State Spartans

Unranked and underestimated, they defeated the highly-titled Larry Bird-led Indiana State team in the NCAA Championship game. Magic Johnson's emergence as a star helped lead the Spartans to a 75-64 victory and the national title.

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2000 New Jersey Devils

Despite being outshot and outplayed for much of the playoffs, they won the Stanley Cup through exceptional goaltending by Martin Brodeur. They defeated the Dallas Stars and Philadelphia Flyers, proving that defense and goal-tending can overcome offensive stars.

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2006 Florida Panthers

Though they lost the Finals, their run to the Conference Finals as an eighth seed was significant. However, the 2004 run is more notable. Let's replace with 1985 Chicago Bears.

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1985 Chicago Bears

Starting 3-1, the Bears went on to win 15 straight games, including Super Bowl XX. They dominated the NFL with the '46 Defense, dismantling the New England Patriots in a lopsided victory that cemented their legacy as one of the greatest defensive teams ever.

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1991 Minnesota North Stars

As a lower seed, they upset the Calgary Flames in the first round of the playoffs. This victory signaled the changing of the guard in the NHL, as the young North Stars squad proved they could compete with the established powerhouses of the decade.

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2015 Golden State Warriors

After a 67-win season, they defeated the Cleveland Cavaliers in the Finals. While they were favorites, the context of beating a team that had beaten them the previous year in a similar upset scenario makes their dominance a key part of the narrative.

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2020 Tampa Bay Buccaneers

Despite losing key players like Chris Godwin and Mike Evans early in the season, the Bucs won Super Bowl LV. Tom Brady's return to Tampa Bay led them to defeat the heavily favored Kansas City Chiefs, proving adaptability and depth were key.

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2021 Los Angeles Rams

As a wild card team in the NFC, they defeated the top-seeded San Francisco 49ers and then the Cincinnati Bengals to win Super Bowl LVI. Their victory was built on a strong defensive performance and crucial offensive drives when it mattered most.

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1998 Denver Broncos

Starting 1-2, the Broncos won their first eight games and went on to win Super Bowl XXXII. They broke a long losing streak in the Super Bowl by defeating the heavily favored Green Bay Packers, establishing John Elway as a champion.

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2022 Kansas City Chiefs

After blowing a 24-0 lead in the Super Bowl the previous year, they defeated the Philadelphia Eagles in Super Bowl LVII. Their ability to bounce back from a historic failure and defeat a strong Eagles team showcased their championship resilience.

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1977 New York Yankees

After finishing third the previous year, they went on a tear to win the World Series. They defeated the Los Angeles Dodgers in five games, marking the beginning of a dominant era for the Yankees with players like Reggie Jackson and Thurman Munson.