This is a list of single-season records in

Major League Baseball Major League Baseball (MLB) is a professional baseball organization and the oldest major professional sports league in the world. MLB is composed of 30 total teams, divided equally between the National League (NL) and the American League (AL), ...

Batting records

Overview (1876–present)

Home run In baseball, a home run (abbreviated HR) is scored when the ball is hit in such a way that the batter is able to circle the bases and reach home plate safely in one play without any errors being committed by the defensive team. A home run i ...
s

*Most Grand Slams By a Pitcher in One Season:

Tony Cloninger Tony Lee Cloninger (August 13, 1940 – July 24, 2018) was an American professional baseball player and coach. He played in Major League Baseball as a right-handed pitcher from through for the Milwaukee / Atlanta Braves, Cincinnati Reds and ...

Madison Bumgarner Madison Kyle Bumgarner (born August 1, 1989), commonly known by his nickname, "MadBum", is an American professional baseball pitcher for the Arizona Diamondbacks of Major League Baseball (MLB). Previously, he pitched for the San Francisco Giants ...

, 2

Hits Hits or H.I.T.S. may refer to: Arts, entertainment, and media Music * ''H.I.T.S.'', 1991 album by New Kids on the Block * ''...Hits'' (Phil Collins album), 1998 * ''Hits'' (compilation series), 1984–2006; 2014 - a British compilation album se ...

Batting average Batting average is a statistic in cricket, baseball, and softball that measures the performance of batters. The development of the baseball statistic was influenced by the cricket statistic. Cricket In cricket, a player's batting average is ...

Runs batted in A run batted in (RBI; plural RBIs ) is a statistic in baseball and softball that credits a batter for making a play that allows a run to be scored (except in certain situations such as when an error is made on the play). For example, if the bat ...

Hitting streak In baseball, a hitting streak is the number of consecutive official games in which a player appears and gets at least one base hit. According to the Official Baseball Rules, such a streak is not necessarily ended when a player has at least 1 plate ...

Runs scored In baseball, a run is scored when a player advances around first, second and third base and returns safely to home plate, touching the bases in that order, before three outs are recorded and all obligations to reach base safely on batted balls ...

Doubles

Triples TripleS (stylized as tripleS; Help:IPA/English, /ˈtɹɪpəl:ɛs/; ) is a South Korean girl group formed by MODHAUS. They aim to be the world's first decentralized K-pop idol group. The members will rotate between the group, sub-unit, and solo ac ...

At bats In baseball, an at bat (AB) or time at bat is a batter's turn batting against a pitcher. An at bat is different from a plate appearance. A batter is credited with a plate appearance regardless of what happens during their turn at bat, but a batt ...

Stolen bases In baseball, a stolen base occurs when a runner advances to a base to which they are not entitled and the official scorer rules that the advance should be credited to the action of the runner. The umpires determine whether the runner is safe or ...

Pitching records

Overview

Live-ball era (1920–present)

(if different from above)

Wins

Post 19th Century

Live-ball era (post-1920)

Earned run average In baseball statistics, earned run average (ERA) is the average of earned runs allowed by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number ...

Strikeouts In baseball or softball, a strikeout (or strike-out) occurs when a batter accumulates three strikes during a time at bat. It usually means that the batter is out. A strikeout is a statistic recorded for both pitchers and batters, and is deno ...

Shutouts In team sports, a shutout ( US) or clean sheet ( UK) is a game in which one team prevents the other from scoring any points. While possible in most major sports, they are highly improbable in some sports, such as basketball. Shutouts are usuall ...

Saves

Balks

Wild pitch In baseball, a wild pitch (WP) is charged against a pitcher when his pitch is too high, too short, or too wide of home plate for the catcher to control with ordinary effort, thereby allowing a baserunner, or the batter (on an uncaught third stri ...
es

Catcher records

*Most runners caught stealing: Jody Davis, 89 (1986) *Most stolen bases allowed:

Mike Piazza Michael Joseph Piazza ( ; born September 4, 1968) is an American former professional baseball catcher who played 16 seasons in Major League Baseball (MLB), from 1992 to 2007. He currently serves as the manager of the Italian national baseball tea ...

, 155 (1996) *Highest caught-stealing %:

Mike LaValliere Michael Eugene LaValliere (born August 18, 1960) is an American former professional baseball catcher. He played in Major League Baseball (MLB) for the Philadelphia Phillies, St. Louis Cardinals, Pittsburgh Pirates, and Chicago White Sox. Amateu ...

, 72.73% (1993) *Most no-hitters caught: 2, Carlos Ruiz (2010) and

Wilson Ramos Wilson Abraham Ramos Campos (born August 10, 1987), nicknamed "The Buffalo", is a Venezuelan professional baseball catcher who is currently a free agent. He has played in Major League Baseball (MLB) for the Minnesota Twins, Washington Nationals ...

(2015) (

List of Major League Baseball no-hitters Below is a list of Major League Baseball no-hitters, enumerating every no-hitter pitched in Major League Baseball history. In addition, all no-hitters that were broken up in extra innings or were in shortened games are listed, although they are no ...

) Both of Ruiz's no-hitters were by

Roy Halladay Harry Leroy "Roy" Halladay III (May 14, 1977 – November 7, 2017) was an American professional baseball pitcher, who played in Major League Baseball (MLB) for the Toronto Blue Jays and Philadelphia Phillies between 1998 and 2013. His nicknam ...

; the second was in Game 1 of the National League Division Series, Halladay's first career postseason start. Both of Ramos' no-hitters were by

Max Scherzer Maxwell Martin Scherzer (born July 27, 1984) is an American professional baseball pitcher for the New York Mets of Major League Baseball (MLB). He previously played in MLB for the Arizona Diamondbacks, Detroit Tigers, Washington Nationals, and L ...

. In 1914, Yankees catcher Les Nunamaker threw out three runners in the same inning.

Team records

Hits

Home runs

Runs batted in

Runs scored

Notes

References

{{DEFAULTSORT:Major League Baseball Single-Season Records Major League Baseball records