Although they have not thrown an MLB pitch in 2023, Rafael Montero threw 6,483 pitches that were tracked by the PITCHf/x system between 2014 and 2022, including pitches thrown in the MLB Regular Season and the MLB Postseason. In 2022, they relied primarily on their Fourseam Fastball (97mph) and Sinker (96mph), also mixing in a Change (91mph) and Slider (88mph).
In 2022, compared to other RHP:
His fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action and has well above average velo. His sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, is blazing fast, results in many more groundballs compared to other pitchers' sinkers, has slight armside run and has some natural sinking action. His change is thrown extremely hard, has an obvious armside fade and has some natural sink to it. His slider generates fewer whiffs/swing compared to other pitchers' sliders, is much harder than usual and results in somewhat more flyballs compared to other pitchers' sliders.