Adam John Kolarek (born January 14, 1989) is 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, ...
who is a free agent. He has previously played 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 ...
(MLB) for the
Tampa Bay Rays
The Tampa Bay Rays are an American professional baseball team based in the Tampa Bay area. The Rays compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. They are one of two major ...
,
Oakland Athletics
The Oakland Athletics (frequently referred to as the Oakland A's) were an American Major League Baseball (MLB) team based in Oakland, California from 1968 to 2024. The Athletics were a member club of the American League (AL) American League We ...
,
Los Angeles 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 (baseball), National League (NL) National League West, West Div ...
, and
New York Mets
The New York Mets are an American professional baseball team based in the Boroughs of New York City, New York City borough of Queens. The Mets compete in Major League Baseball (MLB) as a member club of the National League (baseball), National ...
.
Kolarek played
college baseball
College baseball is baseball that is played by Student athlete, student-athletes at institutions of higher education. In the United States, college baseball is sanctioned mainly by the National Collegiate Athletic Association (NCAA); in Japan, ...
for the
Maryland Terrapins
The Maryland Terrapins, commonly referred to as the Terps, consist of 19 men's and women's college sports in the United States, varsity intercollegiate athletic teams that represent the University of Maryland, College Park in National Collegiate ...
and was drafted by the
New York Mets
The New York Mets are an American professional baseball team based in the Boroughs of New York City, New York City borough of Queens. The Mets compete in Major League Baseball (MLB) as a member club of the National League (baseball), National ...
in the 11th round of the
2010 MLB draft
The 2010 Major League Baseball draft was held on June 7–9, 2010 at the MLB Network Studios in Secaucus, New Jersey.
First-round selections
The draft order was determined based on the 2009 MLB standings, with the worst team picking first.
;Key ...
. He made his MLB debut in 2017. Kolarek was a member of
Team Israel in the
2023 World Baseball Classic
The 2023 World Baseball Classic (WBC) was an international professional baseball tournament and the fifth iteration of the World Baseball Classic. It began on March 8, 2023, and ran until March 21.
It was originally scheduled to take place in ...
.
Amateur career
Kolarek was born in
Baltimore, Maryland
Baltimore is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 United States census, 2020 census and estimated at 568,271 in 2024, it is the List of United States ...
, to Frank Kolarek and Dorothy Kolarek.
His father played baseball as a catcher at the University of Maryland from 1973 to 1975, and then played professionally in the minor leagues for the
Oakland Athletics
The Oakland Athletics (frequently referred to as the Oakland A's) were an American Major League Baseball (MLB) team based in Oakland, California from 1968 to 2024. The Athletics were a member club of the American League (AL) American League We ...
organization from 1976 to 1979, reaching Class AA with the
Ogden A's
The Ogden A's were a minor league baseball team in the Pacific Coast League, based in Ogden, Utah. They were the Triple-A farm club of the Oakland Athletics, and replaced the San Jose Missions as the tenth team in the PCL.
The Ogden A's existe ...
.
He has three sisters.
He attended
Catonsville High School. He was a pitcher and outfielder for the Comets.
In 2006 as a junior he was named First-Team All-Metro as an outfielder.
In 2007 as a senior he batted .397 and was 8-2 with a 1.05 ERA as a pitcher, and was named First-Team All-Metro as a pitcher and a Brooks Robinson All Star.
He then attended the
University of Maryland
The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public land-grant research university in College Park, Maryland, United States. Founded in 1856, UMD is the flagship institution of the Univ ...
, where he played from 2008 to 2010. In 2008 as a freshman, he was 2–1 with a 4.26 ERA in 21 relief appearances.
In 2009 as a sophomore, he was 2–1 with a 4.68 ERA in 26 games (four starts), and in 2010 as a junior, he was 1–4 with a 6.06 ERA in 13 games (five starts). Ranked as one of the top 50 lefthanders in the country, Kolarek was drafted by the Mets in the 11th round of the
2010 Major League Baseball draft
The 2010 Major League Baseball draft was held on June 7–9, 2010 at the MLB Network Studios in Secaucus, New Jersey.
First-round selections
The draft order was determined based on the 2009 MLB standings, with the worst team picking first.
;Key ...
.
Professional career
New York Mets
Kolarek pitched for the
Kingsport Mets
The Kingsport Mets were a Minor League Baseball team of the Appalachian League from 1921 to 2020. They were located in Kingsport, Tennessee, and were last named for the team's major league affiliate, the New York Mets. The team played its home g ...
and
Brooklyn Cyclones
The Brooklyn Cyclones are a Minor League Baseball team of the South Atlantic League and the High-A affiliate of the New York Mets. They are based in the New York City borough of Brooklyn, and play at Maimonides Park, just off the Coney Island ...
in 2010, and went 2–1 with a 3.13 ERA in 22 relief appearances between them. In 37 1/3 innings, he allowed 19 hits and had 45 strikeouts. Had he qualified, he would have led Kingsport in
WHIP
A whip is a blunt weapon or implement used in a striking motion to create sound or pain. Whips can be used for flagellation against humans or animals to exert control through pain compliance or fear of pain, or be used as an audible cue thro ...
, with a mark of 0.643.
He pitched for the
Savannah Sand Gnats
The Savannah Sand Gnats were a minor league baseball team based in Savannah, Georgia. They were a member of the A-level South Atlantic League. The Sand Gnats were an affiliate of the New York Mets in their final nine seasons. The team relocated t ...
and
St. Lucie Mets
The St. Lucie Mets are a Minor League Baseball team of the Florida State League and the Single-A affiliate of the New York Mets. They are located in Port St. Lucie, Florida, and play their home games at Clover Park. The Mets have been members ...
in 2011, going 7–1 with a 2.85 ERA in 26 games (one start). His 1.000 winning percentage for Savannah tied for the team and
league
League or The League may refer to:
Arts and entertainment
* ''Leagues'' (band), an American rock band
* ''The League'', an American sitcom broadcast on FX and FXX about fantasy football
* ''League of Legends'', a 2009 multiplayer online battle a ...
lead.
In 2012, Kolarek went 1–3 with 18 saves (fifth in the league), 70 strikeouts (11.1 strikeouts per 9 innings; 6th in the league), and a 2.37 ERA in 44 games (57 innings) for St. Lucie, earning a spot on the
Florida State League
The Florida State League (FSL) is a Minor League Baseball league based in the state of Florida. Having been classified at various levels throughout its existence, it operated at Class A-Advanced from 1990 until its demotion to Single-A following ...
All-Star team.
He also pitched 6 games for the
Binghamton Mets
The Binghamton Rumble Ponies are an American Minor League Baseball team based in Binghamton, New York. The team, which plays in the Eastern League, is the Double-A affiliate of the New York Mets major-league club. The Rumble Ponies play in Mi ...
, and posted a 2–0 record with a 5.68 ERA. He was an MiLB.com Organization All-Star and a FSL Post-Season All-Star that year. He led St. Lucie in games and
games finished
In baseball statistics, a relief pitcher is credited with a game finished (denoted by GF) if he is the last pitcher to pitch for his team in a game. A starting pitcher is not credited with a GF for pitching a complete game.
Mariano Rivera is the ...
that year. He led the entire league in saves. In the
Arizona Fall League
The Arizona Fall League (AFL) is an off-season baseball league owned and operated by Major League Baseball (MLB) which operates during autumn in Arizona, United States, at six different baseball complexes. Arizona Fall League rosters are filled ...
, he had a 2.92 ERA in nine games for the
Surprise Saguaros
The Surprise Saguaros are a baseball team that plays in the West Division of the Arizona Fall League. They play their home games in Surprise, Arizona, at Surprise Stadium. The ballpark is also the spring training facility of the Kansas City Roya ...
.
In 2013, he was 3–3 with a 1.71 ERA in 44 relief appearances for Binghamton. In his first taste of
Triple-A, Kolarek had an 11.25 ERA in 2 appearances for the
Las Vegas 51s as well.
Kolarek spent some time with the big league club during 2014
spring training
Spring training, also called spring camp, is the preseason of the Summer Professional Baseball Leagues, such as Major League Baseball (MLB), and it is a series of practices and exhibition games preceding the start of the regular season. Spri ...
. Back with Binghamton for that year's regular season, his ERA was 6.07 in 48 relief appearances, though he had a 1.12 mark in six games for the
Gigantes de Carolina in the
Puerto Rican Winter League
Puerto, a Spanish word meaning ''seaport'', may refer to:
Places
*El Puerto de Santa María, Andalusia, Spain
*Puerto, a seaport town in Cagayan de Oro, Philippines
*Puerto Colombia, Colombia
*Puerto Cumarebo, Venezuela
*Puerto Galera, Oriental Mi ...
.
He spent 2015 with Binghamton. He tied for fourth in the Eastern League with 51 appearances.
He then pitched for the Gigantes de Carolina in the Puerto Rican League for a second consecutive year.
Tampa Bay Rays
On October 23, 2015, Kolarek signed a minor league contract with 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 ...
organization and was assigned to the Double-A
Bowie Baysox
The Chesapeake Baysox are a Minor League Baseball team located in Bowie, Maryland. They are the Double-A affiliate of the Baltimore Orioles, and play in the Eastern League. Their home ballpark is Prince George's Stadium. From 1993 to 2024, th ...
.
On December 10, 2015, the
Tampa Bay Rays
The Tampa Bay Rays are an American professional baseball team based in the Tampa Bay area. The Rays compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. They are one of two major ...
selected Kolarek in the minor league phase of the
Rule 5 draft
The Rule 5 draft is a Major League Baseball (MLB) player draft that occurs each year in December, at the annual Winter Meeting of general managers. The Rule 5 draft aims to prevent teams from stockpiling too many young players on their minor lea ...
. He split the 2016 season between the Triple-A
Durham Bulls
The Durham Bulls are a Minor League Baseball team of the International League and the Triple-A affiliate of the Tampa Bay Rays. They are located in Durham, North Carolina, and play their home games at Durham Bulls Athletic Park, which opened ...
and the Double-A
Montgomery Biscuits
The Montgomery Biscuits are a Minor League Baseball team based in Montgomery, Alabama. They are the Double-A affiliate of the Tampa Bay Rays and play in the Southern League. The team was founded in Orlando, Florida, in 1973 as the Orlando Twins ...
, posting a 3-4 record and 3.13 ERA in 47 appearances between the two teams, holding left-handers to limited lefties to a .143 average.
Kolarek elected free agency following the season on November 7, 2016.
Atlanta Braves
On November 19, 2016, Kolarek signed a minor league contract with the
Atlanta Braves
The Atlanta Braves are an American professional baseball team based in the Atlanta metropolitan area. The Braves compete in Major League Baseball (MLB) as a member club of the National League (baseball), National League (NL) National League Eas ...
organization that included an invitation to Spring Training. He did not make the team out of spring and was released on March 24, 2017.
Tampa Bay Rays (second stint)

On March 27, 2017, Kolarek signed a minor league contract to return to the
Tampa Bay Rays
The Tampa Bay Rays are an American professional baseball team based in the Tampa Bay area. The Rays compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. They are one of two major ...
organization. He was assigned to Triple-A Durham to begin the year. Kolarek was called up to the majors for the first time on June 28, 2017. At 28 years old, after 320 minor league games over eight minor league seasons, Kolarek made his major league debut at
PNC Park
PNC Park is a baseball stadium on the North Shore (Pittsburgh), North Shore of Pittsburgh, Pennsylvania. It is the fifth location to serve as the ballpark of Major League Baseball's Pittsburgh Pirates. Opened during the 2001 Major League Baseb ...
, throwing 1.1 innings, allowing one hit and striking out one on 14 pitches.
On September 3, Kolarek was designated for assignment by Tampa Bay after struggling to a 6.48 ERA across 12 appearances in his rookie year. He was outrighted to Durham the next day.
Kolarek did not make the team out of spring in 2018, and was assigned to Triple-A Durham to start the season. On July 6, 2018, Kolarek was selected to the active roster after posting a 1.70 ERA in 29 games in Durham. In 2018, he made 31 appearances with two saves and a 3.93 ERA, and 10.5 strikeouts per 9 innings.
In 2019 with the Rays, he was 4–2 with a 3.95 ERA in 54 games.
[
]
Los Angeles Dodgers
On July 31, 2019, the Rays traded Kolarek to the Los Angeles 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 (baseball), National League (NL) National League West, West Div ...
in exchange for minor leaguer Niko Hulsizer. He pitched in 26 games for the Dodgers in 2019, with two wins and a stellar 0.77 ERA in 11 innings.[ In 2019 he allowed only 19.6% of inherited runners to score (the seventh-best percentage among Major League relievers), and had the 3rd-highest ]ground ball
In the sports of baseball and softball, a batted ball is a pitch that has been contacted by the batter's bat. Batted balls are either fair or foul, and can be characterized as a fly ball, pop-up, line drive, or ground ball. In baseball, a fou ...
percentage among big league relievers, at 66.9%.
In the pandemic-shortened 2020 season, Kolarek was 3–0 with one save. He appeared in 20 games and allowed only two runs in 19 innings for an amazing 0.95 ERA.[ He held batters to a batting line of .164/.208/.224.] He appeared in four games in the postseason, working innings, allowing three runs as the Dodgers won the 2020 World Series
The 2020 World Series was the championship series of Major League Baseball's 2020 season. The 116th World Series was a best-of-seven-playoff between the American League (AL) champion Tampa Bay Rays and the National League (NL) champion Los An ...
.[ With the victory, Kolarek earned his first ever World Series championship.]
Oakland Athletics
On February 12, 2021, Kolarek was traded to the Oakland Athletics
The Oakland Athletics (frequently referred to as the Oakland A's) were an American Major League Baseball (MLB) team based in Oakland, California from 1968 to 2024. The Athletics were a member club of the American League (AL) American League We ...
(along with Cody Thomas
Cody Ryan Thomas (born October 8, 1994) is an American professional baseball outfielder for the Long Island Ducks of the Atlantic League of Professional Baseball. He was a multi-sport athlete in college, playing both college baseball and colleg ...
) in return for Sheldon Neuse
Sheldon Lynn Neuse ( ; born December 10, 1994) is an American professional baseball infielder who is a free agent. He has previously played in Major League Baseball (MLB) for the Los Angeles Dodgers and Oakland Athletics, and in Nippon Profession ...
and Gus Varland
Augustus James Varland (born November 6, 1996) is an American professional baseball pitcher for the Chicago White Sox of Major League Baseball (MLB). He has previously played in MLB for the Milwaukee Brewers and Los Angeles Dodgers.
Career
Varla ...
. Kolarek made 12 appearances for Oakland in 2021, but struggled to an 8.00 ERA with 4 strikeouts in 9.0 innings pitched.
In 2022, Kolarek pitched in 15 games for the Athletics, logging a 4.58 ERA with 9 strikeouts in 17.2 innings of work. He was designated for assignment by Oakland on June 30, 2022. On July 1, Kolarek cleared waivers and was sent outright to the Triple-A Las Vegas Aviators
The Las Vegas Aviators, formerly known as the Las Vegas 51s and Las Vegas Stars, are a Minor League Baseball team of the Pacific Coast League (PCL) and the Triple-A affiliate of the Athletics. They are located in Summerlin South, Nevada, a comm ...
. On October 13, Kolarek elected free agency.
In his major league career through 2022, he kept left-handed batters to a batting line of .190/.243/.260. Between 2017 and 2022, he primarily threw an 89 mph sinker and a 79 mph slider, while also throwing an 83 mph changeup and a 92 mph fourseam fastball.
Los Angeles Dodgers (second stint)
On December 15, 2022, Kolarek signed a minor league contract with the Los Angeles 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 (baseball), National League (NL) National League West, West Div ...
organization. He was assigned to the Triple–A Oklahoma City Dodgers
The Oklahoma City Comets are a Minor League Baseball team of the Pacific Coast League (PCL) and the Triple-A (baseball), Triple-A affiliate of the Los Angeles Dodgers. They are located in Oklahoma City, Oklahoma City, Oklahoma, and play their ho ...
to begin the 2023 season, where he pitched in 21 games and posted a 2.18 ERA with 12 strikeouts in innings of work. On June 11, Kolarek was selected to the major league roster. He tossed a scoreless innings of relief against the Philadelphia Phillies
The Philadelphia Phillies are an American professional baseball team based in Philadelphia. The Phillies compete in Major League Baseball (MLB) as a member club of the National League (NL) East Division. Since 2004, the team's home stadium has ...
, striking out two. On June 14, he was designated for assignment. He cleared waivers and was sent outright to Triple–A Oklahoma City on June 17.
New York Mets (second stint)
On August 1, 2023, Kolarek and Phil Bickford
Phillip Roger Bickford (born July 10, 1995) is an American professional baseball pitcher in the Chicago Cubs organization. He has previously played in Major League Baseball (MLB) for the Milwaukee Brewers, Los Angeles Dodgers, New York Mets, and ...
were traded to the New York Mets
The New York Mets are an American professional baseball team based in the Boroughs of New York City, New York City borough of Queens. The Mets compete in Major League Baseball (MLB) as a member club of the National League (baseball), National ...
in exchange for cash considerations. After 6 appearances for the Triple–A Syracuse Mets
The Syracuse Mets are a Minor League Baseball team of the International League and the Triple-A (baseball), Triple-A affiliate of the New York Mets. They are located in Syracuse, New York, and play their home games at NBT Bank Stadium, which ope ...
, his contract was selected to the major league roster on August 19. In 4 appearances for the Mets, he tossed scoreless innings of relief with five strikeouts. On August 27, Kolarek was designated for assignment by the Mets. On August 30, Kolarek cleared waivers and elected free agency in lieu of an outright assignment.
Atlanta Braves (second stint)
On August 31, 2023, Kolarek signed a minor league contract with the Atlanta Braves
The Atlanta Braves are an American professional baseball team based in the Atlanta metropolitan area. The Braves compete in Major League Baseball (MLB) as a member club of the National League (baseball), National League (NL) National League Eas ...
organization. In 7 games for the Triple–A Gwinnett Stripers
The Gwinnett Stripers are a Minor League Baseball team of the International League (IL) and the Triple-A (baseball), Triple-A affiliate of the Atlanta Braves. They play their home games at Coolray Field in unincorporated Gwinnett County, Georgia ...
, he struggled to a 9.82 ERA with 7 strikeouts across innings of work. Kolarek elected free agency following the season on November 6.
Los Angeles Angels
On November 26, 2023, Kolarek signed a one-year, $900,000 contract with the Los Angeles Angels
The Los Angeles Angels are an American professional baseball team based in the Greater Los Angeles, Greater Los Angeles area. The Angels compete in Major League Baseball (MLB) as a member club of the American League (AL) American League West, ...
. On January 6, 2024, he was removed from the 40-man roster and sent outright to the Triple–A Salt Lake Bees
The Salt Lake Bees are a Minor League Baseball (MiLB) team that plays in the Pacific Coast League (PCL) and are the Triple-A affiliate of the Los Angeles Angels. Based in South Jordan, Utah, the team plays its home games at The Ballpark at Am ...
. In 31 games for the Bees, Kolarek struggled to a 6.97 ERA with 33 strikeouts across 31 innings pitched. He was released by the Angels organization on August 13.
International career; Team Israel
Kolarek was eligible to play for the Israel national baseball team
The Israel National Baseball Team () represents Israel in international competitions. It is managed by Ian Kinsler.
At the 2017 WBC, Team Israel came in 6th. In 2022, Israel was ranked 20th in the world. The Israel national baseball team compete ...
in the 2023 World Baseball Classic
The 2023 World Baseball Classic (WBC) was an international professional baseball tournament and the fifth iteration of the World Baseball Classic. It began on March 8, 2023, and ran until March 21.
It was originally scheduled to take place in ...
, if it had passed the first round, through his marriage to a Jewish woman. He would have played for Team Israel manager Ian Kinsler
Ian Michael Kinsler (; born June 22, 1982) is an American-Israeli former professional baseball second baseman. He played in Major League Baseball (MLB) for 14 seasons for the Texas Rangers (baseball), Texas Rangers, Detroit Tigers, Los Angeles A ...
, and alongside outfielder Joc Pederson
Joc Russell Pederson ( ; born April 21, 1992) is an American professional baseball outfielder for the Texas Rangers of Major League Baseball (MLB). He has previously played in MLB for the Los Angeles Dodgers, Chicago Cubs, Atlanta Braves, San ...
and starting pitcher Dean Kremer
Dean Junior Kremer (; born January 7, 1996) is an Israeli–American professional baseball pitcher for the Baltimore Orioles of Major League Baseball (MLB). In 2015, he became the first Israeli drafted by an MLB team. He made his MLB debut in Se ...
, among others.
Personal
His father, Frank Kolarek, played in the minor leagues in the 1970s and 1980s. Adam married Melanie Rae Shapiro on November 11, 2017.
References
External links
{{DEFAULTSORT:Kolarek, Adam
1989 births
Living people
Baseball players from Baltimore
Binghamton Mets players
Brooklyn Cyclones players
21st-century American sportsmen
Durham Bulls players
Gigantes de Carolina (baseball) players
Kingsport Mets players
Las Vegas 51s players
Las Vegas Aviators players
Los Angeles Dodgers players
Major League Baseball pitchers
Maryland Terrapins baseball players
Montgomery Biscuits players
New York Mets players
Oakland Athletics players
Oklahoma City Dodgers players
Salt Lake Bees players
Savannah Sand Gnats players
St. Lucie Mets players
Surprise Saguaros players
Syracuse Mets players
Tampa Bay Rays players