Caleb Thielbar Bio
Caleb John Thielbar, born on January 31, 1987, in Randolph, Minnesota, is an American professional baseball pitcher for the Chicago Cubs of Major League Baseball (MLB). A left-handed reliever known for his resilience, Thielbar first reached the majors with the Minnesota Twins in 2013 and has built a long career through the minor leagues, independent baseball, and international play. He currently wears number 24 for the Cubs.
Across his MLB career, Thielbar has compiled a 28–18 win–loss record, a 3.35 earned run average (ERA), and 426 strikeouts, statistics tracked through June 20, 2026. His path to the majors was unconventional, including time in independent baseball, a coaching stint, and selection to the United States national baseball team for the 2019 WBSC Premier 12 tournament.
Early Life and Background
Caleb John Thielbar was born and raised in Randolph, Minnesota, a small community where he grew up in a tight-knit family environment that supported his athletic interests. He attended Randolph High School, where he developed his pitching skills and began drawing attention from college and professional scouts. His Midwestern roots helped shape his workmanlike approach to the game, a style that has carried through his professional career.
After high school, Thielbar enrolled at South Dakota State University, where he played college baseball for the South Dakota State Jackrabbits. He became the first player from that program to reach Major League Baseball, a milestone he achieved in 2013 with the Minnesota Twins. His college years gave him a competitive platform and helped him transition toward the professional ranks.
Path to Professional Baseball
Thielbar’s professional journey began when the Milwaukee Brewers selected him in the 18th round, with the 556th overall pick, of the 2009 Major League Baseball draft. In his first professional season, he split time between the rookie-level Arizona League Brewers and the rookie-level Helena Brewers, posting a combined 6–1 record with a 1.53 ERA and 48 strikeouts across 47 innings. The following year, he moved between Helena and the Single-A Wisconsin Timber Rattlers, but struggled at 0–2 with a 5.19 ERA, and was released by the Brewers organization on December 13, 2010.
After his release, Thielbar signed with the St. Paul Saints of the American Association of Professional Baseball, an independent league, prior to the 2011 season. He posted a 3–3 record with a 2.54 ERA and 62 strikeouts in 43 relief outings across 49 and two-thirds innings, rebuilding his value as a pitcher. That performance earned him a minor league contract with the Minnesota Twins organization on August 19, 2011, launching the next phase of his career.
Caleb Thielbar Career
Early Career (2009–2012)
Thielbar spent his first professional seasons climbing the Brewers’ minor league system before his release in late 2010. His independent-ball rebound with the St. Paul Saints in 2011 demonstrated the kind of strike-throwing ability that would later define his MLB career. In 2012, the Twins assigned him across three levels, including the High-A Fort Myers Miracle, the Double-A New Britain Rock Cats, and the Triple-A Rochester Red Wings, where he went 6–2 with a 2.43 ERA, 74 strikeouts, and 6 saves in 48 appearances.
On November 20, 2012, the Twins added Thielbar to their 40-man roster, protecting him from the Rule 5 draft. That move signaled the organization’s belief in his arm and set the stage for his MLB debut the following spring.
Minnesota Twins First Stint (2013–2015)
On May 20, 2013, the Twins promoted Thielbar to the major leagues for the first time. He made his debut that day, pitching two innings, and became the first South Dakota State baseball player to reach the majors. He remained in the Twins bullpen for the rest of the season, appearing in 49 games and pitching 46 innings with a 1.76 ERA and 0.826 WHIP, an impressive start to his MLB career.
In 2014, Thielbar appeared in 54 games for the Twins, pitching 47 and two-thirds innings with a 3.40 ERA. His 2015 season was cut short, however, as he pitched just five innings in six appearances before being designated for assignment on July 31, 2015, ending his first run with the organization.
Journeyman Years (2015–2019)
On August 8, 2015, the San Diego Padres claimed Thielbar off waivers from the Twins and assigned him to their Triple-A affiliate, the El Paso Chihuahuas. He posted 12 and one-third innings with only one earned run before being designated for assignment again, clearing waivers, and being sent outright to El Paso on September 3.
Thielbar returned to the St. Paul Saints in 2016 and 2017, posting strong independent-ball numbers, including a 5–2 record with four saves, 56 strikeouts, and a 2.39 ERA in 64 innings in 2016, and a 2–1 record with a 2.01 ERA in 22 and one-third innings in 2017. He signed a minor league deal with the Detroit Tigers in January 2018, going 7–1 with a 2.05 ERA in 57 innings across Double-A Erie and Triple-A Toledo. In 2019, he returned to Toledo, going 2–1 with four saves and 92 strikeouts in 76 and one-third innings, before being traded to the Atlanta Braves on August 30, 2019, in exchange for cash considerations. After the season, he was selected for the United States national baseball team in the 2019 WBSC Premier 12, and later accepted a pitching coach position at Augustana University, believing his playing days were over.
Minnesota Twins Second Stint (2020–2024)
On December 13, 2019, Thielbar signed a minor league contract with the Minnesota Twins, and on August 3, 2020, the club selected his contract to the active roster. He made his first major league appearance in over five years the next day, finishing the shortened season with a 2.25 ERA and 22 strikeouts in 17 games.
Thielbar signed a one-year, $650,000 contract with Minnesota for the 2021 season, appearing in 59 games with a 7–0 record, 3.23 ERA, and 77 strikeouts across 64 innings. In 2022, he made 67 appearances, going 4–3 with a 3.49 ERA and 80 strikeouts in 59 and one-third innings. On January 13, 2023, he agreed to a one-year, $2.4 million contract, avoiding salary arbitration, and appeared in 36 games with a 3–1 record, 3.23 ERA, and 36 strikeouts in 30 and two-thirds innings. In 2024, he logged a 5.32 ERA with 53 strikeouts and 3 saves in 47 and one-third innings across 59 relief appearances, completing his second stint with the Twins.
Chicago Cubs Era (2025–Present)
On December 31, 2024, Thielbar signed a one-year, $2.75 million contract with the Chicago Cubs. In his first season with Chicago in 2025, he made 67 appearances out of the bullpen, registering a 3–4 record, 2.64 ERA, 56 strikeouts, and one save across 58 innings, solidifying his role as a reliable middle reliever.
On December 17, 2025, Thielbar re-signed with the Cubs on a one-year, $4.5 million contract, signaling the organization’s continued confidence in his veteran presence. He is expected to remain a key piece of the Chicago bullpen, providing left-handed matchup options and innings-eating reliability.
Driving Style and Strengths
Thielbar is a left-handed relief pitcher whose game is built on command, deception, and the ability to miss bats in high-leverage situations. His career strikeout totals, including 426 through June 20, 2026, reflect a pitcher who can generate swings and misses despite working primarily off the fastball-slider combination. His bullpen partner relationships, developed across multiple organizations, have helped him refine his approach against both right- and left-handed hitters.
Notable Events and Milestones
Among Thielbar’s signature career moments is becoming the first South Dakota State Jackrabbits baseball alumnus to appear in a Major League game, a milestone he reached on May 20, 2013, with the Minnesota Twins. His selection to the 2019 WBSC Premier 12 for Team USA also stands out as a rare honor for an independent-league and minor-league journeyman. Returning to the majors in 2020 after a five-year absence, and later signing multi-million-dollar contracts with the Cubs, mark additional career-defining moments.
Caleb Thielbar Career Wins
Caleb John Thielbar has accumulated 28 career MLB wins as a relief pitcher, with his victories spread across stints with the Minnesota Twins and the Chicago Cubs. His win total reflects the steady role he has carved out as a dependable bullpen arm over more than a decade in the major leagues.
MLB Highlights
Thielbar’s first MLB victory came during his rookie season with the Minnesota Twins in 2013, a year in which he posted a 1.76 ERA across 49 appearances. He added to that total during his second stint with the Twins from 2020 through 2024, including a perfect 7–0 record in 2021 that highlighted his effectiveness in high-leverage situations. With the Chicago Cubs, he has continued to contribute in middle relief, adding wins to a career total that includes 426 strikeouts and a 3.35 ERA through June 20, 2026.
Other Wins and Performances
Beyond his MLB record, Thielbar has posted notable numbers in the minor leagues and independent baseball, including a 6–1 record with the Brewers’ rookie affiliates in 2009 and a 7–1 mark with the Detroit Tigers’ system in 2018. His work in the American Association with the St. Paul Saints further underscores his durability and consistency as a pitcher.
Caleb Thielbar Family
Family Background and Racing Lineage
Caleb John Thielbar was raised in Randolph, Minnesota, in a family that supported his athletic development from a young age. He attended Randolph High School, the same school where he continued to develop as a pitcher before going on to South Dakota State University. Specific details about his parents and broader family background are not publicly documented.
Personal Life
Caleb Thielbar is married to his wife, Carissa, and the couple has one son together. The family has remained a steady presence throughout his career, including during the years he spent in independent baseball and the minor leagues. His long professional journey has been shaped in part by that family support, which has helped him sustain a career that has spanned more than a decade at the major league level.
2025 Season Performance
In 2025, Caleb John Thielbar transitioned to the Chicago Cubs on a one-year, $2.75 million contract signed on December 31, 2024. He quickly became a regular in the Cubs’ bullpen, making 67 appearances and finishing the year with a 3–4 record, 2.64 ERA, 56 strikeouts, and one save across 58 innings. His ability to log that workload reflected both his durability and the trust placed in him by the Cubs’ pitching staff.
Thielbar’s left-handed matchup role gave Chicago a reliable option in middle relief, helping stabilize a bullpen that leaned on veteran experience. His 2.64 ERA was among the strongest of his career at the major league level, signaling that his late-career resurgence with the Twins had carried over to his new organization. The Cubs’ decision to bring him back on a one-year, $4.5 million contract on December 17, 2025, confirmed his value heading into the next campaign.
Looking ahead, Thielbar is expected to remain a key bullpen piece for the Chicago Cubs, with his 426 career strikeouts and 3.35 career ERA underscoring a pitcher who continues to perform at a high level. His path, from an 18th-round draft pick to a multi-million-dollar free agent contract, remains one of the more unusual career arcs in modern Major League Baseball.
