Jacob Misiorowski Bio
Jacob Walter Misiorowski (born April 3, 2002) is an American professional baseball player who pitches for the Milwaukee Brewers of Major League Baseball. Misiorowski rose rapidly through college and the Brewers’ system after being selected in the 2022 MLB draft and made his major league debut in 2025, earning an All-Star selection that season.
Early Life and Background
Jacob Misiorowski was born April 3, 2002, and grew up in Grain Valley, Missouri. He attended Grain Valley High School, where he emerged as a standout pitcher and earned All-State recognition as a junior in 2019 after posting strong numbers on the mound.
Following the cancellation of his senior season in 2020, Misiorowski chose to continue his development in college baseball. He enrolled at Crowder College and worked through early setbacks, including a torn meniscus in 2021, before returning to form as a dominant collegiate pitcher in 2022.
Path to Baseball
Misiorowski stood out at Crowder College in 2022, making 15 starts and going 10–0 with a 2.72 earned run average while recording 136 strikeouts in 76 innings. That season earned him second-team NJCAA All-American honors and significant attention from professional scouts.
His performance at the Major League Baseball Combine after the 2022 season elevated his profile further; he averaged near 100 miles per hour on his fastball and posted some of the fastest bullpen velocities at the event. Those metrics and his collegiate results set expectations for an early selection in the 2022 draft.
Jacob Misiorowski Career
Early Career (2022–2024)
The Milwaukee Brewers selected Misiorowski with the 63rd overall pick in the 2022 MLB draft. He signed with the organization on July 27, 2022, for an over-slot signing bonus of $2.35 million and entered the Brewers’ development pipeline that year.
In the years that followed, Misiorowski progressed through the Brewers’ minor-league system. The club promoted him to the Triple-A Nashville Sounds in August 2024 and experimented with a bullpen role while still expressing a long-term plan for him as a starting pitcher. By early 2025, prospect rankings had placed him among the Brewers’ top prospects.
Milwaukee Brewers Breakthrough (2025–2026)
Misiorowski received his first major league promotion on June 12, 2025. In his MLB debut he earned the win after delivering five innings of no-hit baseball and recorded the fastest pitch by a Brewers pitcher in the Statcast era at that time, touching triple digits on the radar gun. His early major-league starts drew national attention for both dominance and velocity.
In his second major-league start he threw six perfect innings, extending an extraordinary run of no-hit work to begin his career. Those first outings included historic comparisons dating back decades and led to a July 11, 2025 All-Star selection as a replacement, making him the fastest player to earn an All-Star nod after only five major-league appearances.
Following the All-Star break in 2025, Misiorowski experienced a period of struggles late in the regular season but finished his rookie year with solid strikeout totals and gained votes in National League Rookie of the Year balloting. He was included on the Brewers’ postseason roster and delivered multiple strong relief and spot-start appearances in the National League Division Series and Championship Series, posting a low postseason ERA and striking out batters in high leverage innings.
Milwaukee Brewers Era (2025–Present)
The Brewers named Misiorowski their Opening Day starter for the 2026 season. In that start he recorded 11 strikeouts across five innings, a single-game Opening Day high for a Brewers pitcher, and earned the decision in a decisive team victory. That outing reinforced his role in the Brewers’ rotation heading into the season.
During the 2026 season Misiorowski continued to turn heads with elite velocity and sustained run prevention. In June 2026 he set a record for the fastest pitch thrown by a starting pitcher since tracking began in 2008, with subsequent starts featuring extreme velocity and a one-hit Maddux performance that included 15 strikeouts on only 95 pitches.
Pitching Style and Strengths
Misiorowski profiles as a high-velocity starting pitcher who pairs an overpowering fastball with a quality breaking offering. His strengths include swing-and-miss ability, strikeout generation, and the capacity to dominate innings with elevated velocity. Brewers coaching and his pitch mix have supported both long-relief and traditional starting roles.
Notable Events and Milestones
Key milestones in Misiorowski’s young career include his five no-hit innings in his major-league debut, a six-inning perfect outing to begin his career, a 2025 All-Star selection in his first month in the majors, postseason wins in the 2025 playoffs, an Opening Day start in 2026, and record-setting pitch velocities for a starting pitcher in 2026.
Jacob Misiorowski Career Wins
As of June 26, 2026, Misiorowski’s major-league totals include a 14–6 win–loss record, a 2.62 earned run average, and 233 strikeouts, reflecting sustained success at the highest level through his first full major-league seasons.
Major League Highlights
Misiorowski’s major-league highlights center on his 2025 rookie campaign and his early 2026 performances. He recorded multiple multi-inning dominant starts, finished the 2025 regular season with notable strikeout totals, and delivered strong postseason outings that included multiple wins and low earned-run averages across the Brewers’ playoff series.
Other Wins & Perfromances
Before reaching the majors, Misiorowski posted a 10–0 record at Crowder College in 2022 with 136 strikeouts and a 2.72 ERA, earning second-team NJCAA All-American honors. His minor-league work included a strong stint at Triple-A Nashville in early 2025, where he posted a 2.13 ERA with 80 strikeouts in 13 appearances prior to his promotion.
Jacob Misiorowski Family
Family Background and Racing Lineage
Misiorowski is of Polish descent, a detail he has publicly acknowledged. He grew up in Grain Valley, Missouri, and developed as a local baseball prospect through the high school ranks before moving to collegiate and professional stages.
Personal Life
Misiorowski has spoken publicly about personal interests outside of baseball, including a longtime enthusiasm for Pokémon and card collecting. He grew up a fan of the Kansas City Royals and became engaged to his partner, Elle, in 2026.
2025 Season Performance
The 2025 season marked Misiorowski’s arrival in the major leagues. He debuted in June, made several historically notable starts including multiple no-hit and near-perfect innings, earned an All-Star selection, and finished the regular season with solid strikeout production and mixed results in earned-run prevention. He contributed significant innings and low-run appearances in the postseason, helping the Brewers in both the Division Series and Championship Series.
Looking at his early tenure with the Brewers, Misiorowski established himself as a frontline option in the rotation with elite velocity and swing-and-miss stuff. His rapid ascent from Crowder College and the minor leagues to an All-Star rookie season underscored a development path built on power pitching and performance in high-leverage situations.