Boston Red Sox
Justin Slaten has thrown 1,185 pitches that have been tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season, Spring Training, Fall/Winter Ball and Independent Leagues. In 2025, they have relied primarily on their Fourseam Fastball (97mph), Cutter (93mph) and Curve (85mph), also mixing in a Slider (85mph).