Boston Red Sox
Zack Kelly has thrown 3,248 pitches that have been tracked by the PITCHf/x system between 2022 and 2026, including pitches thrown in the MLB Regular Season, The World Baseball Classic, Spring Training and Independent Leagues. In 2026, they have relied primarily on their Cutter (91mph) and Slider (82mph), also mixing in a Sinker (96mph) and Fourseam Fastball (96mph). He also rarely throws a Change (84mph) and Curve (84mph).