Top 9 Greatest World Series Upsets of All Time

The World Series has given baseball fans countless moments of magic, heartbreak, and shock. But there’s something special about an upset—when a team defies the odds, flips the script, and topples a supposed powerhouse. From early 20th-century miracles to modern-day stunners, the Fall Classic has produced some of the most improbable champions in sports history.

Let’s relive the biggest upsets to ever rock the baseball world.

9) 1906 Chicago White Sox vs. Chicago Cubs

The “Hitless Wonders” weren’t supposed to win anything, much less the World Series. The 1906 White Sox hit just .230 as a team and an even uglier .198 in the Series. Their crosstown rivals, the Cubs, had won a staggering 76 percent of their games—a mark nearly untouchable even today.

But baseball’s beauty lies in its unpredictability. The White Sox erupted for eight runs in both Games 5 and 6, turning a tied series into a stunning 4–2 victory. The Cubs’ dominant season ended in disbelief, while the White Sox etched their names into baseball lore.

1906 World Series Game 1: White Sox @ Cubs

8) 1954 Cleveland Indians vs. New York Giants

The 1954 Indians were loaded. They won 111 games and were heavily favored to crush the Giants. Cleveland was riding high after years of success—this was supposed to be their return to glory.

Instead, one unforgettable play changed everything. Willie Mays’ legendary over-the-shoulder catch in Game 1 stole both the spotlight and the Indians’ momentum. The Giants capitalized and swept Cleveland 4–0, leaving the Tribe stunned and ending one of the best seasons in team history on a sour note.

1954 World Series

7) 2006 Detroit Tigers vs. St. Louis Cardinals

Detroit entered the Series red-hot with 95 wins and a dominant pitching staff led by rookie Justin Verlander, Kenny Rogers, and Jeremy Bonderman. The Cardinals? A modest 83–78, the weakest record ever for a World Series champion.

But baseball doesn’t always make sense. The Tigers unraveled defensively, committing five costly errors, while David Eckstein (.364, Series MVP) and unsung pitchers like Anthony Reyes and Jeff Weaver carried St. Louis to an improbable title. The Cardinals’ poise under pressure delivered one of the most shocking triumphs in World Series history.

2006 World Series Film-Full

6) 1914 Boston Braves vs. Philadelphia A’s

At the Fourth of July mark, the 1914 Braves sat in last place. From that point on, they went 70–19 and stormed into the World Series against the mighty Philadelphia A’s, who had won 99 games and were managed by the great Connie Mack.

The Braves weren’t intimidated—they swept the A’s in four straight, outscoring them 16–6. The defeat was so humiliating that Mack dismantled his dynasty, selling off stars like Eddie Collins, who had just won MVP. It remains one of baseball’s most remarkable turnarounds.

1914 World Series

5) 1990 Cincinnati Reds vs. Oakland A’s

The 1990 A’s were a juggernaut—Jose Canseco, Mark McGwire, Dave Stewart, Dennis Eckersley—a powerhouse expected to cruise to another title. The Reds were seen as overmatched underdogs.

Then the series started. Cincinnati blasted Stewart 7–0 in Game 1, edged out a dramatic win in Game 2, and then dominated Games 3 and 4. Jose Rijo’s brilliant pitching sealed a 4–0 sweep. The Reds didn’t just win—they embarrassed one of baseball’s most intimidating teams.

1990 WS Gm2: Oliver’s single off Eckersley wins game

4) 2003 Florida Marlins vs. New York Yankees

When Jack McKeon took over in May, the Marlins were a mess. By October, they were the ultimate Cinderella story. Behind Josh Beckett’s blazing fastball, Brad Penny’s grit, and Carl Pavano’s control, the Fish shocked the baseball world.

The Yankees—loaded with Roger Clemens, Andy Pettitte, and Mike Mussina—looked destined for another ring after Aaron Boone’s ALCS heroics. Instead, Beckett threw a five-hit shutout in Yankee Stadium to clinch the title, cementing Florida’s second improbable championship in six years.

2003 World Series Highlights

3) 1960 Pittsburgh Pirates vs. New York Yankees

Few World Series were as lopsided on paper as this one. The Yankees crushed the Pirates in their three wins by a combined 38–3 margin, yet Pittsburgh refused to quit.

The Pirates won every close game, setting the stage for one of the most iconic finishes in baseball history—Bill Mazeroski’s walk-off homer in Game 7. It remains the only World Series ever decided by a Game 7 home run.

The World Series of 1960: New York Yankees vs Pittsburgh Pirates

2) 1988 Los Angeles Dodgers vs. Oakland A’s

It’s the series of the Kirk Gibson miracle—a limping hero hitting a walk-off home run that defied logic. But beyond that unforgettable moment, the Dodgers pulled off another upset just to get to the Series, defeating a stacked Mets team in the NLCS.

Then came Orel Hershiser, who single-handedly silenced the A’s offense, pitching brilliantly as both a starter and reliever. The Dodgers’ 4–1 triumph remains one of baseball’s most inspiring tales of grit and belief.

Kirk Gibson’s legendary 1988 World Series walk-off home run, called by Vin Scully!

1) 1969 New York Mets vs. Baltimore Orioles

The “Miracle Mets” weren’t supposed to win anything—certainly not against a 109-win Orioles squad featuring Jim Palmer, Mike Cuellar, and Dave McNally.

After dropping Game 1, the Mets’ pitching took over. Tom Seaver and Jerry Koosman stifled the Orioles, who managed only five runs the rest of the series. Donn Clendenon, the unlikely Series MVP, delivered three clutch home runs. The Mets’ defense was superb, and their poise turned disbelief into destiny. Towards the end of August the Mets looked done until they staged one of the greatest comebacks in Pennant history!

Conclusion

Baseball’s enduring charm lies in its unpredictability. For every dynasty that dominates, there’s a scrappy underdog ready to shock the world. These upsets remind us that heart, hustle, and belief can overcome even the most insurmountable odds.

From the Miracle Mets to the Hitless Wonders, each of these stories represents more than just a championship—they’re timeless reminders that in baseball, anything truly is possible.