No-hitter

In baseball, a no-hitter (also known as a no-hit game and colloquially as a no-no) is a game in which a team was not able to record a single hit. Major League Baseball (MLB) officially defines a no-hitter as a completed game in which a team that batted in at least nine innings recorded no hits. A pitcher who prevents the opposing team from achieving a hit is said to have "thrown a no-hitter". This is a rare accomplishment for a pitcher or pitching staff: only 295 have been thrown in Major League Baseball history since 1876, an average of about two per year. In most cases in MLB, no-hitters are recorded by a single pitcher who throws a complete game; one thrown by two or more pitchers is a combined no-hitter. The most recent no-hitter by a single pitcher was thrown on April 21, 2016 by Jake Arrieta of the Chicago Cubs against the Cincinnati Reds at Cincinnati's Great American Ball Park. The most recent combined no-hitter was thrown by Cole Hamels, Jake Diekman, Ken Giles, and Jonathan Papelbon of the Philadelphia Phillies against the Atlanta Braves on September 1, 2014.

It is possible to reach base without a hit, most commonly by a walk, error, or being hit by a pitch. (Other possibilities include the batter reaching first after a dropped third strike.) A no-hitter in which no batters reach base at all is a perfect game, a much rarer feat. Because batters can reach base by means other than a hit, a pitcher can throw a no-hitter (though not a perfect game) and still give up runs, and even lose the game, although this is extremely uncommon and most no-hitters are also shutouts. One or more runs were given up in 25 recorded no-hitters in MLB history, most recently by Ervin Santana of the Los Angeles Angels of Anaheim in a 3–1 win against the Cleveland Indians on July 27, 2011. On two occasions, a team has thrown a nine-inning no-hitter and still lost the game. On a further four occasions, a team has thrown a no-hitter for eight innings in a losing effort, but those four games are not officially recognized as no-hitters by Major League Baseball because the outing lasted fewer than nine innings. It is theoretically possible for opposing pitchers to throw no-hitters in the same game, although this has never happened in the majors. Two pitchers, Fred Toney and Hippo Vaughn, completed nine innings of a game on May 2, 1917 without either giving up a hit or a run; Vaughn gave up two hits and a run in the 10th inning, losing the game to Toney, who completed the extra-inning no-hitter.

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