Game: 1985 World Series Game 6
St. Louis Cardinals vs. Kansas City Royals

A mere out away from winning the 1985 World Series, Cardinals first basemen Jack Clark fielded what should have been a series-clinching grounder. He tossed the ball to Todd Worrell who stumbled clownishly over first base a step before the Royals' Jorge Orta. Go crazy folks, right!? Nope. Umpire Don Denkinger called Orta safe, triggering an onslaught of base hits and a Kansas City win. The Royals would go on to win Game 7 with the embattled behind the plate. Denkinger would later admit his mistake and claimed to receive hate mail and death threats as a result.