Fitzpatrick made his professional debut in 2022 with the rookie-level
Arizona Complex League Brewers, recording a 2.45 ERA over two appearances. He split the 2023 campaign between the ACL Brewers and Single-A
Carolina Mudcats, accumulating a 1-2 record and 6.46 ERA with 33 strikeouts across 11 appearances (including seven starts). He made 20 appearances (seven starts) for the High-A
Wisconsin Timber Rattlers in 2024, compiling a 5-2 record and 2.69 ERA with 76 strikeouts and one
save across innings pitched. Fitzpatrick split the 2025 season between the Triple-A
Nashville Sounds, Double-A
Biloxi Shuckers, and Wisconsin. In 38 appearances out of the
bullpen for the three affiliates, he posted a cumulative 5-4 record and 3.59 ERA with 62 strikeouts and two saves over innings pitched. Fitzpatrick began the 2026 season with Triple-A Nashville, tossing scoreless innings with 11 strikeouts over his first ten outings of the year. On April 29, 2026, Fitzpatrick was selected to the
40-man roster and promoted to the major leagues for the first time. ==References==