Perfect Games Spoiled By The 27th Batter (Click For Wikipedia Link)

Detroit Tigers pitcher Armando Galarraga (58) covers first base as Cleveland Indians' Jason Donald, right, runs to the base and umpire Jim Joyce looks on in the ninth inning of a baseball game in Detroit Wednesday, June 2, 2010. Joyce called Donald safe and Galarraga lost his bid for a perfect game with two outs in the ninth inning on the disputed call at first base. Detroit won 3-0. (AP Photo/Paul Sancya) (Paul Sancya - AP)

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It was in the air tonight. It was meant to be, and yet it wasn't, due to what Tyler Perry in the New York Times called "easily the most egregious blown call in baseball over the last 25 years." Perfect games seem to be happening a lot lately. A perfect game was pitched tonight, but won't be officially counted.
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How many times has a perfect game been ruined by a hit in the last play of the game? The answer is provided toward the end of a rich article in Wikipedia:

On ten occasions in Major League Baseball history, a perfect game has been spoiled when the batter representing what would have been the third and final out in the ninth inning reached base.

Wikipedia, of course, is already up to date:

On June 2, 2010, Armando Galarraga of the Tigers gave up an infield single to Jason Donald of the Cleveland Indians on a blown call by first base umpire Jim Joyce. After the game, Joyce acknowledged that he had missed the call: "I just cost that kid a perfect game. I thought he beat the throw. I was convinced he beat the throw, until I saw the replay." The New York Times game report by Tyler Kepner called it "easily the most egregious blown call in baseball over the last 25 years."

ESPN has a great article, accompanied by the footage of the play and clips of several talking heads.