Boston Red Sox
Justin Slaten has thrown 1,139 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 Cutter (93mph) and Fourseam Fastball (97mph), also mixing in a Curve (85mph) and Slider (85mph).