Adam Kolarek

Adam John Kolarek (born January 14, 1989) is an American former professional baseball relief pitcher. He played in Major League Baseball (MLB) for the Tampa Bay Rays, Oakland Athletics, Los Angeles Dodgers, and New York Mets.

Kolarek played college baseball for the Maryland Terrapins and was drafted by the New York Mets in the 11th round of the 2010 MLB draft. He made his MLB debut in 2017.

Amateur career Kolarek was born in Baltimore, Maryland, 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 organization from 1976 to 1979, reaching Class AA with the Ogden A's.

He attended Catonsville High School. He was a pitcher and outfielder for the Comets. 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.

Professional career

New York Mets Kolarek pitched for the Kingsport Mets and Brooklyn Cyclones 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, with a mark of 0.643.

He pitched for the Savannah Sand Gnats and St. Lucie Mets 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 lead. He also pitched 6 games for the Binghamton Mets, 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 that year. He led the entire league in saves. In the Arizona Fall League, he had a 2.92 ERA in nine games for the Surprise Saguaros. 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.

On December 10, 2015, the Tampa Bay Rays selected Kolarek in the minor league phase of the Rule 5 draft. He split the 2016 season between the Triple-A Durham Bulls and the Double-A Montgomery Biscuits, 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.

Atlanta Braves On November 19, 2016, Kolarek signed a minor league contract with the Atlanta Braves 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) Adam Kolarek pitching against the Baltimore Orioles on July 1, 2017. On March 27, 2017, Kolarek signed a minor league contract to return to the Tampa Bay Rays 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, 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. He pitched in 26 games for the Dodgers in 2019, with two wins and a stellar 0.77 ERA in 11 innings. 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. 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 organization. He was assigned to the Triple–A Oklahoma City Dodgers to begin the 2023 season, where he pitched in 21 games and posted a 2.18 ERA with 12 strikeouts in innings of work. He tossed a scoreless innings of relief against the Philadelphia Phillies, 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 were traded to the New York Mets in exchange for cash considerations. After 6 appearances for the Triple–A Syracuse Mets, 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 organization. In 7 games for the Triple–A Gwinnett Stripers, 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. On January 6, 2024, he was removed from the 40-man roster and sent outright to the Triple–A Salt Lake Bees. 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.

On April 3, 2025, Kolarek announced his retirement from baseball on the Glenn Clark Radio show.

Personal His father, Frank Kolarek, played in the minor leagues in the 1970s and 1980s. Adam married Melanie on November 11, 2017.