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A-Ball or Class A

:As of the 2022 season, "Class A" is the lowest grouping of modern affiliated minor league baseball, with sub-categories of "High-A" and "Single-A". "Short-Season A" leagues also existed before 2021.
High-A High-A (officially Class High-A, formerly known as Class A-Advanced, and sometimes abbreviated "A+" in writing) is the third-highest level of play in Minor League Baseball in the United States and Canada, below Triple-A and Double-A, and abov ...
is divided into three leagues:
Midwest League The Midwest League is a Minor League Baseball league established in 1947 and based in the Midwestern United States. A Class A league for most of its history, the league was promoted to High-A as part of Major League Baseball's 2021 reorganizat ...
,
Northwest League The Northwest League is a Minor League Baseball league that operates in the Northwestern United States and Western Canada. A Class A Short Season league for most of its history, the league was promoted to High-A as part of Major League Basebal ...
, and
South Atlantic League The South Atlantic League, often informally called the Sally League, is a Minor League Baseball league with teams predominantly in states along the Atlantic coast of the United States from New York to Georgia. A Class A league for most of its ...
.
Single-A Class A, also known as Single-A and sometimes as Low-A, is the fourth-highest level of play in Minor League Baseball in the United States, below Triple-A, Double-A, and High-A. There are 30 teams classified at the Single-A level, one for each ...
is also divided into three leagues: California League,
Carolina League The Carolina League is a Minor League Baseball league which has operated along the Atlantic Coast of the United States since 1945. Having been classified at various levels throughout its existence, it operated at Class A-Advanced from 1990 unti ...
, and Florida State League.


AA

:*"Double-A" (AA) is the second-highest level of minor league baseball (below AAA), and as of 2022 includes the Eastern League, the Southern League, and the
Texas League The Texas League is a Minor League Baseball league which has operated in the South Central United States since 1902. It is classified as a Double-A league. Despite the league's name, only its five South Division teams are actually based in the ...
. :*"AA" is also the abbreviation for the American Association, which has been the name of numerous professional baseball leagues: a short-lived major league of the 19th century, a minor league for much of the 20th century, and an independent minor league that became a "Partner League" of Major League Baseball in 2021.


AAA

:"Triple-A" is the highest level of minor league baseball. As of 2022, this level includes the International League and the Pacific Coast League.


AAAA player

:"Four-A player" (alternatively, "Quadruple-A player") is a term for a minor-league player who is consistently successful in the high minor leagues, but cannot translate that into success at the major-league level. Poor management can be responsible. Clay Davenport, "Is There Such a Thing as a Quadruple-A Player?" in
Jonah Keri Jonah Keri (born September 20, 1974) is a Canadian former journalist, sportswriter, and editor. He is currently serving a prison sentence after pleading guilty to multiple counts of domestic violence offences. Early life and education Keri is ...
, Ed., ''Baseball Between the Numbers'' (New York: Basic Books, 2006): 242-252.
"AAAA" may also informally refer to high-quality but unaffiliated foreign baseball leagues outside North America where play is considered less competitive than in MLB but more competitive than in
AAA AAA, Triple A, or Triple-A is a three-letter initialism or abbreviation which may refer to: Airports * Anaa Airport in French Polynesia (IATA airport code AAA) * Logan County Airport (Illinois) (FAA airport code AAA) Arts, entertainment, and me ...
; this is usually restricted to describing Japan's NPB but may also include
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ...
's KBO and (rarely)
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
's
CPBL The Chinese Professional Baseball League (CPBL; ) is the top-tier professional baseball league in Taiwan. The league was established in 1989 and played the first season in 1990. CPBL eventually absorbed the competing Taiwan Major League in 2 ...
.


aboard

:When a runner is on base. When there are runners safely on base, there are "runners aboard".


ace

:The best starting pitcher on the team, who is usually first on a pitching rotation.


advance a runner

:To move a runner ahead safely to another base, often the conscious strategy of a team that plays small ball. If a batter does make an out, his plate appearance will have been less negative if he still got a runner into
scoring position In the sport of baseball, a baserunner is said to be in scoring position when they are on second or third base. The distinction between being on first base and second or third base is that a runner on first can usually only score if the batte ...
; in certain situations, batters even ''deliberately'' sacrifice themselves.


ahead in the count

:*A term that signifies whether the batter or pitcher possesses the advantage in an at-bat. If a pitcher has thrown more strikes than balls to a batter in an at-bat, the pitcher is ahead in the count; conversely, if the pitcher has thrown more balls than strikes, the batter is ahead. :*If the pitcher is ahead in the count, the batter is in increasing danger of striking out. If the batter is ahead, the pitcher is in increasing danger of walking him.


aim the ball

:Sometimes when a pitcher tries a bit too carefully to control the location of a pitch, he is said to "aim the ball" instead of throwing it. This is a different meaning of "aim" from the situation in which a pitcher aims a pitch at a batter in an effort to hit him.


airmail

:Slang for a fielder's errant throw that sails high over the player to whom he intended to throw the ball. For example, if the third baseman were to throw the ball over the first baseman's head and into the stands, he is said to have "airmailed" the throw. "But Chandler airmailed her throw to third into the dugout..."


alabaster blast

:Coined by Pittsburgh Pirates announcer Bob Prince, a
Baltimore Chop B backdoor breaking ball :A breaking pitch, usually a Slider (baseball), slider, curveball, or cut fastball that, due to its lateral motion, passes through a small part of the Glossary of baseball (S)#strike zone, strike zone on the outside edg ...
would bounce higher than normal due to the extraordinarily hard dirt at Forbes Field.


alley

:Also "gap" or "power alley", the space between the leftfielder and the centerfielder, or the rightfielder and centerfielder. If a batter hits the ball "up the alley" with enough force, he has a stronger chance of advancing beyond first base and being credited with an extra-base hit. Typically, this is an appropriate term for describing a line drive or ground ball; fly balls that hit the wall are not normally described this way.


ambush

:Swinging at (and especially hitting) the first pitch.


American League (AL)

:The junior of the two existing Major Leagues.


American League Championship Series (ALCS)

:The season's final best-of-seven playoff series which determines the American League team that will advance to the
World Series The World Series is the annual championship series of Major League Baseball (MLB) in the United States and Canada, contested since 1903 between the champion teams of the American League (AL) and the National League (NL). The winner of the World ...
. The ALCS–like its analog, the NLCS–came into being in 1969. The ALCS winner takes the American League pennant and the title of American League Champion for that season. The winners of the
American League Division Series In Major League Baseball, the American League Division Series (ALDS) determines which two teams from the American League will advance to the American League Championship Series. The Division Series consists of two best-of-five series, featuring e ...
have met in the ALCS since 1995.


American League Division Series (ALDS)

:The first round of the league playoffs. The winners of the three divisions and the winner of the Wild Card Game are paired off in two best-of-five series, the winners of which advance to the ALCS.


Annie Oakley

:A free ticket to attendance at a ballgame or to first base (a "free pass" or "base on balls").


appeal play

:A play in which the defense has an opportunity to gain a favorable ruling from an umpire by addressing a mistake by the offense or seeking the input of another umpire. Appeals require the defense to make a verbal appeal to an appropriate umpire, or if the situation being appealed is obvious a player may indicate an appeal with a gesture. The onus is on the defense to make an appeal; umpires will not announce potential appeal situations such as runners failing to touch a base, batting out of order, or unchecked swings until an appeal is made.


Arizona Fall League (AFL)

:A short-season minor league in which high-level prospects from all thirty Major League Baseball clubs are organized into six teams on which players have the opportunity to refine and showcase their skills for evaluation by coaches, scouts, and executives. Such teams are referred to as "scout teams" and "taxi squads".


arm

:A metonym for a pitcher ("A's trade two young arms to Kansas City...", "...Anthopoulos is just stockpiling arms in an attempt to lure a trade...").


around the horn

:*The infielders' practice of throwing the ball to each other after recording an out, provided there are no runners on base. The purpose is as much traditional as anything, but it serves as a way to celebrate the out. Typically, if an out is made at first base, the
first baseman A first baseman, abbreviated 1B, is the player on a baseball or softball team who fields the area nearest first base, the first of four bases a baserunner must touch in succession to score a run. The first baseman is responsible for the majori ...
will throw to the
shortstop Shortstop, abbreviated SS, is the baseball or softball fielding position between second and third base, which is considered to be among the most demanding defensive positions. Historically the position was assigned to defensive specialists wh ...
, who throws to the second baseman, who throws to the
third baseman A third baseman, abbreviated 3B, is the player in baseball or softball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run. In the scoring system us ...
, who returns the ball to the
pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...
. Patterns vary from team to team, but the third baseman is usually the last infielder to receive a throw, regardless of the pattern. :*Throwing the ball around the horn is also done after a strikeout with no baserunners. The
catcher Catcher is a position in baseball and softball. When a batter takes their turn to hit, the catcher crouches behind home plate, in front of the ( home) umpire, and receives the ball from the pitcher. In addition to this primary duty, the ca ...
will throw the ball to the third baseman, who then throws it to the second baseman, who throws it to the shortstop, who then throws it to the first baseman. Some catchers, such as
Iván Rodríguez Iván Rodríguez Torres (born November 27, 1971), nicknamed "Pudge" and "I-Rod", is a Puerto Rican former Major League Baseball catcher. He played for the Texas Rangers (in two separate stints, comprising the majority of his career), Florida ...
, prefer to throw the ball to the first baseman, who then begins the process in reverse. Some catchers determine to whom they will throw based on the handedness of the batter (to first for a right-handed batter because the line to the first baseman is not blocked and vice versa) or whether the team is in an overshift, when the third baseman would be playing close to where the shortstop normally plays and would require a harder throw to be reached. :*An additional application of this term is when a 5-4-3 double play has occurred, which mimics the pattern of throwing the ball around the horn.


arsonist

:An ineffective
relief pitcher In baseball and softball, a relief pitcher or reliever is a pitcher who enters the game after the starting pitcher is removed because of fatigue, ineffectiveness, injury, or ejection, or for other strategic reasons, such as inclement weat ...
. Usually a
pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...
who comes into the game with no one on base but proceeds to give up several runs. Opposite of
fireman A firefighter is a first responder and rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property, and the environment as well as to rescue people and in some cases or jurisdictions also ...
.


ash

:An old-fashioned word referring to a baseball bat, which is typically made of wood from an ash tree. "The shrewd manager substitutes a fast runner for a slow one, and sends in a pinch hitter when the man he takes out is just as good with the ash as the man he sends in."


aspirin

:Slang for a fastball that is especially hard to hit due to its velocity and/or movement, in reference to the difficulty of making contact with something as small as an
aspirin Aspirin, also known as acetylsalicylic acid (ASA), is a nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, fever, and/or inflammation, and as an antithrombotic. Specific inflammatory conditions which aspirin is used to treat inc ...
tablet. May additionally reference batters seeing a pitched ball as relatively smaller than normal, a potential psychological effect on batters who are in a slump.


assist

:The
official scorer In the game of baseball, the official scorer is a person appointed by the league to record the events on the field, and to send the official scoring record of the game back to the league offices. In addition to recording the events on the field ...
awards an assist to every defensive player who fields or touches the ball (after it has been hit by the batter) prior to a putout, even if the contact was unintentional. For example, if a ball strikes a player's leg and bounces off him to another fielder, who tags the baserunner, the first player is credited with an assist. :A fielder can receive only one assist per out recorded. A fielder also receives an assist if a putout would have occurred, had not another fielder committed an
error An error (from the Latin ''error'', meaning "wandering") is an action which is inaccurate or incorrect. In some usages, an error is synonymous with a mistake. The etymology derives from the Latin term 'errare', meaning 'to stray'. In statistics ...
.


asterisk

:A slang term for a baseball record that is disputed in popular opinion (i.e., unofficially) because of a perception that the record holder had an unfair advantage in attaining the record. It implies that the record requires a footnote explaining the purportedly unfair advantage, with the asterisk being a symbol commonly used in typography to call out footnotes. In recent times it has been prominently used in the following circumstances: :*The record holder is widely believed to have used
performance-enhancing drugs Performance-enhancing substances, also known as performance-enhancing drugs (PEDs), are substances that are used to improve any form of activity performance in humans. A well-known example of cheating in sports involves doping in sport, where bann ...
, whether or not such use is proven or admitted. Barry Bonds was regularly greeted with banners and signs bearing an asterisk during the 2007 season when he broke
Hank Aaron Henry Louis Aaron (February 5, 1934 – January 22, 2021), nicknamed "Hammer" or "Hammerin' Hank", was an American professional baseball right fielder who played 23 seasons in Major League Baseball (MLB), from 1954 through 1976. One of the gre ...
's career home run record. The ball Bonds hit for the record-breaking home run was subsequently branded with an asterisk before it was sent to the Baseball Hall of Fame. :*A holder of a single-season record accomplished the feat in a longer season, and thus had additional opportunities to break the record. A well-known example of this was when Roger Maris broke
Babe Ruth George Herman "Babe" Ruth Jr. (February 6, 1895 – August 16, 1948) was an American professional baseball player whose career in Major League Baseball (MLB) spanned 22 seasons, from 1914 through 1935. Nicknamed "the Bambino" and "the Su ...
's single-season home run record on the last day of a 162-game regular season in 1961, while Ruth set the previous record in a 154-game season in 1927; the asterisk usage is exemplified in the title of the film '' 61*'', which was about Maris' quest to break Ruth's record.
Baseball Commissioner The Commissioner of Baseball is the chief executive officer of Major League Baseball (MLB) and the associated Minor League Baseball (MiLB) – a constellation of leagues and clubs known as "organized baseball". Under the direction of the Commiss ...
Ford Frick Ford Christopher Frick (December 19, 1894 – April 8, 1978) was an American sportswriter and baseball executive. After working as a teacher and as a sportswriter for the ''New York American'', he served as public relations director of the Natio ...
declared that Maris's record should be listed separately from Ruth's (contrary to popular belief no asterisk was mentioned or used in this case), a decision not formally reversed until 1991. :*The Houston Astros's
2017 World Series The 2017 World Series was the championship series of Major League Baseball's (MLB) 2017 season. The 113th edition of the World Series, it was a best-of-seven playoff played between the National League (NL) champion Los Angeles Dodgers and th ...
championship, which was later marred by allegations of the Astros using technology to steal signs throughout the 2017 season. Fans of opposing teams, especially the
Yankees The New York Yankees are an American professional baseball team based in the New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. They are one of ...
and
Dodgers The Los Angeles Dodgers are an American professional baseball team based in Los Angeles. The Dodgers compete in Major League Baseball (MLB) as a member club of the National League (NL) West division. Established in 1883 in the city of Brooklyn ...
, frequently employ the use of asterisks when referencing the team's season in 2017, often derisively calling the team the "Houston Asterisks".


at 'em ball

:or "atom ball"; slang for a ball batted directly at a defender.


at bat

:*A completed plate appearance by a batter which results in a
base hit In baseball statistics, a hit (denoted by H), also called a base hit, is credited to a batter when the batter safely reaches or passes first base after hitting the ball into fair territory with neither the benefit of an error nor a fielder's ch ...
or a non-sacrifice out. At-bats (or "times at bat") are used for the calculation of a player's
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 ...
and slugging percentage. Note that a plate appearance is not recorded as an "at-bat" if the batter reaches first base as a result of a base on balls, or hit by pitch, nor if he executes a sacrifice bunt or sacrifice fly. :*Occasionally a batter may be at the plate when the third out of the inning is made against a base-runner; in this case the batter will lead off the next inning with a clean strike count and his interrupted plate appearance is not counted as an at-bat.


at the letters

:A pitch that crosses the plate at the height of the letters of the team's name on the shirt of the batter's uniform is said to be "at the letters", " letter-high" or "chest-high".


ate him up

:Slang expression of the action of a batted ball that is difficult for a fielder to handle.


ate the ball

:''See: eat the ball''


attack the strike zone

:Slang for pitching aggressively by throwing strikes, rather than trying to trick hitters into swinging at pitches out of the strike zone or trying to "nibble at the corners" of the plate. Equivalent phrases are "pound the strike zone" and "challenge the hitters".


automatic double

:A batted ball in fair territory which bounces out of play (e.g. into the seats) entitles the batter and all runners on base to advance two bases but no further. This term is used by some commentators in lieu of
ground rule double A ground rule double is a baseball rule that awards two bases from the time of pitch to all baserunners including the batter-runner, as a result of the ball leaving play after being hit fairly and leaving the field under a condition of the gro ...
, which refers to
ground rules In baseball, ground rules are special rules particular to each baseball park (grounds) in which the game is played. Unlike the well-defined playing field of most other sports, the playing area of a baseball field extends to an outfield fence in fa ...
in effect at each ballpark.


automatic strike

:A strike is deemed "automatic" when the pitcher grooves a strike–typically on a 3-0
count Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...
–with such confidence that the batter takes the pitch without swinging at it.


away

:*A pitch outside the strike zone, on the opposite side of the plate as the batter, is referred to as being "away", in contrast to a pitch thrown between the plate and the batter that is known as "inside". :*Slang for outs. For example, a two-out inning may be said to be "two away"; a strikeout may be referred to as "putting away" the batter. :*Games played at an opponent's home field are "away games". The visiting team is sometimes called the "away" team.


References

{{Reflist, 30em Baseball-related lists