Robert Moses "Lefty" Grove (March 6, 1900 – May 22, 1975) was an American professional
baseball
Baseball is a bat-and-ball games, bat-and-ball sport played between two team sport, teams of nine players each, taking turns batting (baseball), batting and Fielding (baseball), fielding. The game occurs over the course of several Pitch ...
pitcher
In baseball, the pitcher is the player who throws ("Pitch (baseball), pitches") the Baseball (ball), baseball from the pitcher's mound toward the catcher to begin each play, with the goal of out (baseball), retiring a batter (baseball), batter, ...
. After having success in the
minor leagues during the early 1920s, Grove became a star in
Major League Baseball
Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...
with the
American League
The American League of Professional Baseball Clubs, known simply as the American League (AL), is the younger of two sports leagues, leagues constituting Major League Baseball (MLB) in the United States and Canada. It developed from the Western L ...
's
Philadelphia Athletics
The Philadelphia Athletics were a Major League Baseball team that played in Philadelphia from 1901 to 1954, when they moved to Kansas City, Missouri, and became the Kansas City Athletics. Following another move in 1967, they became the Oakland ...
and
Boston Red Sox
The Boston Red Sox are an American professional baseball team based in Boston. The Red Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. Founded in as one of the Ameri ...
. One of the greatest pitchers in history, Grove led the American League in wins in four separate seasons, in
strikeout
In baseball or softball, a strikeout (or strike-out) occurs when a batter accumulates three strikes during a time at bat. It means the batter is out, unless the third strike is not caught by the catcher and the batter reaches first base safe ...
s seven consecutive seasons, and had the league's lowest
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 ...
a record nine times. Over the course of the three years from 1929 to 1931, he twice won the pitcher's
Triple Crown, leading the league in wins, strikeouts, and ERA, while amassing a 79–15 record and leading the Athletics to three straight AL championships. Overall, Grove won 300 games in his 17-year MLB career. He was elected to the
National Baseball Hall of Fame
The National Baseball Hall of Fame and Museum is a history museum and hall of fame in Cooperstown, New York, operated by a private foundation. It serves as the central collection and gathering space for the history of baseball in the United St ...
in 1947.
Early life
Grove was born in
Lonaconing, Maryland, one of eight children of John Robert Grove (1865–1957) and Emma Catherine Beeman (1872–1959). His father and brothers
mined coal.
Grove was a
sandlot star in the
Baltimore
Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
area during the 1910s. He did not play organized baseball until he was 19 years old. Grove purportedly gained the ability to throw hard by hurling rocks. In 1920, he made his professional debut with the Martinsburg Mountaineers of the class-D
Blue Ridge League, where he appeared in six games. In 59
innings pitched
In baseball, the statistic innings pitched (IP) is the number of innings a pitcher has completed, measured by the number of Batter (baseball), batters and baserunners that have been put out while the pitcher is on the Baseball field#Pitcher's mou ...
, Grove gave up just 30
hits, and he had an
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 ...
(ERA) of 1.68. His performance attracted the attention of
Jack Dunn, Sr. (1872–1928), the manager/owner of the minor league
Baltimore Orioles
The Baltimore Orioles (also known as the O's) are an American professional baseball team based in Baltimore. The Orioles compete in Major League Baseball (MLB) as a member club of the American League (AL) East Division. As one of the America ...
, who also discovered
Babe Ruth
George Herman "Babe" Ruth (February 6, 1895 – August 16, 1948) was an American professional Baseball in the United States, baseball player whose career in Major League Baseball (MLB) spanned 22 seasons, from 1914 through 1935. Nickna ...
. Dunn acquired Grove's services by giving Martinsburg enough cash to replace their center field wall.
Baltimore Orioles (minor league)
Grove joined the
Baltimore Orioles
The Baltimore Orioles (also known as the O's) are an American professional baseball team based in Baltimore. The Orioles compete in Major League Baseball (MLB) as a member club of the American League (AL) East Division. As one of the America ...
in 1920, while they were playing a half-century in the minor leagues of first the old
Eastern League (1903–1914) and then after 1916, in the reorganized
International League
The International League (IL) is a Minor League Baseball league that operates in the United States. Along with the Pacific Coast League, it is one of two leagues playing at the Triple-A (baseball), Triple-A level, which is one grade below Major ...
of AAA ball. Grove broke into the team's pitching rotation at midseason and had a 12–2
record the rest of the way. The Orioles were in the middle of winning six straight IL titles from 1919 to 1925. Over the next four seasons, Grove posted marks of 25–10, 18–8, 27–10 and 26–6, leading the International League in
strikeout
In baseball or softball, a strikeout (or strike-out) occurs when a batter accumulates three strikes during a time at bat. It means the batter is out, unless the third strike is not caught by the catcher and the batter reaches first base safe ...
s each season.
Grove remained in the minor leagues through 1924, as owner Jack Dunn refused several offers from the majors to acquire him. At the time, the Orioles were an independent operation with no major league affiliation and the International League had declared its players not subject to a major league
draft
Draft, the draft, or draught may refer to:
Watercraft dimensions
* Draft (hull), the distance from waterline to keel of a vessel
* Draft (sail), degree of curvature in a sail
* Air draft, distance from waterline to the highest point on a v ...
. Since the
reserve clause
The reserve clause, in North American professional sports, was part of a player contract which stated that the rights to players were retained by the team upon the contract's expiration. Players under these contracts were not free to enter into ano ...
in all contracts was honored throughout organized baseball, this meant that Grove had no way to reach the majors until the Orioles became willing to trade or sell his contract. Knowing he had such a talented pitcher in Grove, Dunn kept his contract until 1925, when he finally agreed to sell Grove's rights to
Connie Mack (1862–1956) and his
Philadelphia Athletics
The Philadelphia Athletics were a Major League Baseball team that played in Philadelphia from 1901 to 1954, when they moved to Kansas City, Missouri, and became the Kansas City Athletics. Following another move in 1967, they became the Oakland ...
in the
American League
The American League of Professional Baseball Clubs, known simply as the American League (AL), is the younger of two sports leagues, leagues constituting Major League Baseball (MLB) in the United States and Canada. It developed from the Western L ...
for $100,600 (equivalent to $ million in ), the highest amount ever paid for a player at the time.
Philadelphia Athletics
Grove battled injuries as a major league rookie and posted a 10–12 mark (which would prove his only losing record in 17 major league seasons). He led the league in strikeouts but posted a high 4.75 ERA. Grove then settled down in 1926 and won the first of a record nine earned run average (ERA) titles with a mark of 2.51. In 1927, Grove won 20 games for the first time, and a year later he tied
George Pipgras for the AL lead in wins with 24.
The Athletics won the AL
pennant in three consecutive seasons (1929 to 1931), as well as consecutive World Series championships in
1929 and
1930. During the Athletics' championship run, Grove led the way as the league's top pitcher, posting records of 20–6, 28–5 and 31–4. In 1931, Grove led the league in wins, ERA (2.06), strikeouts (175), winning percentage,
complete game
In baseball, a complete game (CG) is the act of a pitcher pitching an entire game without the benefit of a relief pitcher. A pitcher who meets this criterion will be credited with a complete game regardless of the number of innings played—pitche ...
s, and shutouts. His 2.06 ERA was 2.32 runs below the league average. He was also chosen as league
MVP
MVP most commonly refers to:
* Most valuable player, an award, typically for the best performing player in a sport or competition
* Minimum viable product, a concept for feature estimating used in business and engineering
MVP may also refer to:
...
in 1931, making him one of only a handful of pitchers to achieve this honor. His MVP award is the only one not enshrined in the
National Baseball Hall of Fame
The National Baseball Hall of Fame and Museum is a history museum and hall of fame in Cooperstown, New York, operated by a private foundation. It serves as the central collection and gathering space for the history of baseball in the United St ...
in
Cooperstown, New York, instead being housed at the George's Creek Library in
Lonaconing, Maryland.
During the 1931 season, Grove tied
Smokey Joe Wood's and
Walter Johnson
Walter Perry Johnson (November 6, 1887 – December 10, 1946), nicknamed "Barney" and "the Big Train", was an American professional baseball player and Manager (baseball), manager. He played his entire 21-year baseball career in Major League Ba ...
's AL record with 16 straight wins. He was attempting to win his 17th straight decision when a rookie outfielder filling in for
Al Simmons, who had the day off, committed an
error
An error (from the Latin , meaning 'to wander'Oxford English Dictionary, s.v. “error (n.), Etymology,” September 2023, .) is an inaccurate or incorrect action, thought, or judgement.
In statistics, "error" refers to the difference between t ...
that led to the only run of the game. Grove stated, "After that game I went in and tore the clubhouse up. Wrecked the place. Tore those stall lockers off the wall, giving Al Simmons hell all the while."
[Russo, p. 146] He followed the loss with eight straight wins.
He led the league in strikeouts for a record seven straight years to start his major league career.
The Athletics contended for the next two seasons, but finished second to the
New York Yankees
The New York Yankees are an American professional baseball team based in the Boroughs of New York City, New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) Am ...
in 1932 and third behind the
Washington Senators and Yankees in 1933. In 1933, Grove became the first player in
Major League Baseball
Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...
history to strike out five times in a nine-inning game. On December 12, 1933, team owner
Connie Mack traded Grove, along with
Max Bishop and
Rube Walberg, to the
Boston Red Sox
The Boston Red Sox are an American professional baseball team based in Boston. The Red Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. Founded in as one of the Ameri ...
for
Bob Kline,
Rabbit Warstler and $125,000.
Boston Red Sox

Grove was unable to contribute substantially during his first year in Boston, an arm injury holding him to an 8–8 record. In 1935, however, Grove returned to form with a 20–12 record and a league-leading 2.70 ERA. In the 1936 season, he had a 2.81 ERA (winning his seventh ERA title) while recording a 17–12 record and 130 strikeouts. Grove won his eighth ERA title a year later, while having a 17–9 record along with 153 strikeouts. He pitched 262 innings for the season; this was his 11th and final season where he pitched over 200 innings. Grove continued to post outstanding records, including 14–4 in 1938 and 15–4 in 1939, as well as leading the AL in ERA four times between 1935 and 1939. He had a 7–6 record in 1940 while recording a 3.99 ERA with 62 strikeouts in 153.1 innings. In Grove's last season, he won and lost seven games, winning his 300th game on July 25 (giving up six runs on 12 hits, but winning 10–6), before losing his last three major league games, ending his career on September 28, pitching just one inning in the second game of a doubleheader.
Personal life
Grove married his childhood sweetheart, Ethel Gardner, in 1921. They had two children, Robert and Doris. The couple would later divorce after Grove had an affair with another woman.
Grove was elected to the town council in his native Lonaconing in the 1950s and also served as the town's police chief.
During offseasons and after retiring, Grove operated a
bowling alley
A bowling alley (also known as a bowling center, bowling lounge, bowling arena, or historically bowling club) is a facility where the sport of bowling is played. It can be a dedicated facility or part of another, such as a clubhouse or dwelling ...
in Lonaconing.
Grove befriended a sandlot baseball team whose games he passed on the way home from MLB games, purchasing new jerseys and equipment for the team.
He often donated equipment to local youth baseball players in his retirement.
Legacy

Grove retired in 1941 with a career record of 300–141. His .680 lifetime winning percentage is eighth all-time; however, none of the seven men ahead of him won more than 236 games. His lifetime ERA of 3.06, when normalized to overall league ERA and
adjusted for the parks in which Grove played during his career, is fifth all-time among pitchers with at least 1,000
innings pitched
In baseball, the statistic innings pitched (IP) is the number of innings a pitcher has completed, measured by the number of Batter (baseball), batters and baserunners that have been put out while the pitcher is on the Baseball field#Pitcher's mou ...
(behind
Mariano Rivera
Mariano Rivera (born November 29, 1969) is a Panamanian Americans, Panamanian-American former professional baseball pitcher who played 19 seasons in Major League Baseball (MLB) for the New York Yankees, from 1995 to 2013. Nicknamed "Mo" and " ...
,
Clayton Kershaw
Clayton Edward Kershaw (born March 19, 1988) is an American professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB). A left-handed starting pitcher, Kershaw has spent his entire MLB career with the Dodgers s ...
,
Jim Devlin, and
Pedro Martínez) at 48 percent better than average.
As a hitter, Grove posted a .148
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 ...
(202-for-1,369) with 119
runs, 15
home runs
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 ...
, 121
RBI and 105
bases on balls. From 1929 through 1932, Grove had 56 RBI. Defensively, he recorded a .954
fielding percentage
In baseball statistics, fielding percentage, also known as fielding average, is a measure that reflects the percentage of times a baseball positions, defensive player properly handles a batted or thrown ball. It is calculated by the sum of putout ...
.
Grove was elected to the
National Baseball Hall of Fame
The National Baseball Hall of Fame and Museum is a history museum and hall of fame in Cooperstown, New York, operated by a private foundation. It serves as the central collection and gathering space for the history of baseball in the United St ...
in
1947
It was the first year of the Cold War, which would last until 1991, ending with the dissolution of the Soviet Union.
Events
January
* January–February – Winter of 1946–47 in the United Kingdom: The worst snowfall in the country i ...
. He died in
Norwalk, Ohio
Norwalk is a city in Huron County, Ohio, United States, and its county seat. The population was 17,068 at the 2020 census. The city is the center of the Norwalk micropolitan area and part of the Cleveland–Akron–Canton combined statistical ...
, of a heart attack while watching a televised baseball game at his daughter-in-law's home on May 22, 1975.
[Russo, p. 147] Grove was interred in Section 9, Lot 94, of the Frostburg Memorial Park Cemetery in
Frostburg, Maryland
Frostburg is a city in Allegany County, Maryland. It is located at the head of the Georges Creek Valley, west of Cumberland. The town is one of the first cities on the "National Road", US 40, and the western terminus of the Western Marylan ...
.
In 1969, Grove was voted the left-handed starting pitcher for Major League Baseball's 100th anniversary team.
In 1999, Grove was ranked number 23 on ''
The Sporting News
''The Sporting News'' is a website and former magazine publication owned by Sporting News Holdings, which is a U.S.-based sports media company formed in December 2020 by a private investor consortium. It was originally established in 1886 as a ...
'' list of Baseball's Greatest Players. He ranked second, behind only
Warren Spahn
Warren Edward Spahn (April 23, 1921 – November 24, 2003) was an American professional baseball pitcher who played 21 seasons in Major League Baseball (MLB). A left-handed pitcher, Spahn played in 1942 and then from 1946 until 1965, most notabl ...
, among left-handed pitchers. That year, he was elected to the
Major League Baseball All-Century Team
In 1999, the Major League Baseball All-Century Team was chosen by popular vote of Sports fan, fans. To select the team, a panel of experts first compiled a list of the 100 greatest Major League Baseball (MLB) players from the 20th century. Over tw ...
. In the 2001 book ''
The New Bill James Historical Baseball Abstract'',
Bill James
George William James (born October 5, 1949) is an American baseball writer, historian, and statistician whose work has been widely influential. Since 1977, James has written more than two dozen books about baseball history and statistics. His a ...
ranked Grove as the 19th best baseball player of all time and the second-best MLB pitcher of all time. According to baseball historian Frank Russo, Grove is usually thought to be the best left-handed pitcher in the history of the American League. Russo also writes, "Normalized for league average and adjusted for home park, his 3.06 ERA is quite simply the best in baseball history."
At Game #4 of the 1972 World Series in Oakland, Grove threw out the ceremonial first pitch.
Memorial Park
The objective of the Lefty Grove Memorial Committee is to preserve the memory of Grove. The Lefty Grove Memorial committee is based in Grove's hometown of Lonaconing, Maryland. The memorial was completed and opened to the public on June 22, 2019.
See also
*
List of Major League Baseball career wins leaders
*
List of Major League Baseball career strikeout leaders
:''This list is for pitchers. For career strikeouts by batters, see List of Major League Baseball career strikeouts by batters leaders''
The following list is of the top 100 pitchers in career strikeouts in Major League Baseball. In baseball, a s ...
*
List of Major League Baseball annual wins leaders
Major League Baseball recognizes the player or players in each league with the most wins each season. In baseball, Win (baseball), wins are a baseball statistics, statistic used to evaluate pitchers. Credit for a win is given by the official scor ...
*
List of Major League Baseball annual ERA leaders
*
List of Major League Baseball annual strikeout leaders
*
List of Major League Baseball annual shutout leaders
*
List of Major League Baseball annual saves leaders
*
List of Major League Baseball all-time leaders in home runs by pitchers
*
List of Major League Baseball pitchers who have thrown an immaculate inning
*
Major League Baseball titles leaders
References
Further reading
* Honig, Donald (1975
''Baseball When the Grass Was Real: Baseball from the Twenties to the Forties Told by the Men Who Played It'' New York: Coward, McGann & Geoghegan. pp. 72–86. .
*
External links
*
*
*
*
{{DEFAULTSORT:Grove, Lefty
1900 births
1975 deaths
American League All-Stars
American League Most Valuable Player Award winners
American League ERA champions
American League pitching Triple Crown winners
American League strikeout champions
American League wins champions
American police chiefs
Baltimore Orioles (International League) players
Baseball players from Baltimore
Boston Red Sox players
Law enforcement officials from Maryland
Major League Baseball pitchers
Martinsburg Mountaineers players
National Baseball Hall of Fame inductees
People from Lonaconing, Maryland
Philadelphia Athletics players
20th-century American sportsmen