Oct. 1, 2007, NL wild-card tie-breaker: Did Matt Holliday actually touch the plate while sliding in to win a key contest against the San Diego Padres in the thirteenth inning? Some true-believing Rockies fans say "yes." Other true-believing Rockies fans say "no." And all true-believing Rockies fans think it's pretty damn funny the way things worked out.
Oct. 12, 2005 ALCS Game 2: A.J. Pierzynski was allowed to take first base after a third strike bounced out of catcher Josh Paul's glove. But since the umpire had already rung up Pierzynski, he should have been out, right? Not according to White Sox lovers, who were able to celebrate a few minutes later when a pinch runner put in for Pierzynski scored the winning run.
Oct. 9, 1996, ALCS Game 1: A Derek Jeter fly ball was transformed into a home run thanks to fan interference, as well as a bunch of officials who apparently hadn't been to Lens Crafters in a long, long time.
Oct. 20, 1991 World Series Game 2: Minnesota Twins first baseman Kent Hrbek helped Ron Gant's leg off the bag while tagging him out -- and the umpire let it stand, later claiming that the real villain was "momentum." Which Hrbek gave a hand.
Oct. 26, 1985, World Series, Game 6: Kansas City's Jorge Orta safely arrived at first base in the mind of umpire Don Denkinger and almost no one else -- a ruling that helped the Royals claim a 2-1 win.
Oct. 14, 1975, World Series Game 3: Cincinnati's Ed Armbrister bunted, then cleverly caused Red Sox catcher Carlton Fisk to make an errant throw by interfering with him in a way that the umpire saw as no interference at all. If the Red Sox hadn't won two World Series titles in recent years, they'd still be bitching about this.
Sept. 23, 1908: The Giants would have beaten the Cubs 2-1 had Fred Merkle actually managed to touch second on his trip around the bases. He didn't, causing the game to be ruled a tie -- and the Cubs won the makeup contest en route to their last World Series victory. This sequence of events qualifies as the list topper because of its nickname: Merkle's boner. Bet Mrs. Merkle wasn't amused.