Boston Red Sox
Luis Guerrero has thrown 1,616 pitches that have been tracked by the PITCHf/x system between 2021 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Slider (84mph) and Fourseam Fastball (96mph), also mixing in a Change (86mph).
In 2025, compared to other RHP:
Their slider generates more whiffs/swing compared to other pitchers' sliders, has short glove-side cut, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their fourseam fastball has some natural sinking action, has well above average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slight armside run. Their change (take this with a grain of salt because they've only thrown 19 of them in 2025) has an obvious armside fade, is slightly firmer than usual, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it.