TheArizona Diamondbacks are aMajor League Baseballfranchise based inPhoenix, Arizona. Formed in 1998, they play in theNational League West division. Pitchers for the Diamondbacks have thrown 3no-hitters in franchise history.[1] A no-hitter is officially recognized by Major League Baseball only "when apitcher (or pitchers) allows no hits during the entire course of a game, which consists of at least nine innings", though one or morebatters "may reach base via a walk, an error, a hit by pitch, a passed ball or wild pitch on strike three, or catcher's interference".[2] No-hitters of less than nine complete innings were previously recognized by the league as official; however, several rule alterations in 1991 changed the rule to its current form.[3]Randy Johnson threw the first and onlyperfect game, a special subcategory of no-hitter, in Diamondbacks history on May 18, 2004.[4] As defined by Major League Baseball, "in a perfect game, no batter reaches any base during the course of the game."[2]
Theumpire is also an integral part of any no-hitter. The task of the umpire in a baseball game is to make any decision "which involves judgment, such as, but not limited to, whether a batted ball is fair or foul, whether a pitch is a strike or a ball, or whether a runner is safe or out… [the umpire's judgment on such matters] is final."[5] Part of the duties of the umpire making calls at home plate includes defining thestrike zone, which "is defined as that area overhomeplate(sic) the upper limit of which is a horizontal line at the midpoint between the top of the shoulders and the top of the uniform pants, and the lower level is a line at the hollow beneath the kneecap."[5] These calls define every baseball game and are therefore integral to the completion of any no-hitter.[6]
Themanager is another integral part of any no-hitter. The tasks of the manager include determining the starting rotation as well as batting order and defensive lineup every game.
| ¶ | Indicates aperfect game |
| £ | Pitcher was left-handed |
| * | Member of theNational Baseball Hall of Fame and Museum |
| # | Date | Pitcher | Final score | Base- runners | Opponent | Catcher | Plate umpire | Manager | Notes | Ref |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | May 18, 2004 | Randy Johnson£¶* | 2–0 | 0 | @Atlanta Braves | Robby Hammock | Greg Gibson | Bob Brenly |
| [7] |
| 2 | June 25, 2010 | Edwin Jackson | 1–0 | 10 | @Tampa Bay Rays | Miguel Montero | Adrian Johnson | A. J. Hinch |
| [8] |
| 3 | August 14, 2021 | Tyler Gilbert£ | 7–0 | 3 | vsSan Diego Padres | Daulton Varsho | Scott Barry | Torey Lovullo |
| [9] |
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