Although they have not thrown an MLB pitch in 2023, Jameson Taillon threw 12,733 pitches that were tracked by the PITCHf/x system between 2016 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Fourseam Fastball (94mph), also mixing in a Slider (86mph), Curve (81mph), Sinker (94mph), Cutter (91mph) and Change (88mph).
In 2022, compared to other RHP:
His fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. His slider is a prototypical pitch with few remarkable qualities. His curve has a sharp downward bite, is slightly harder than usual and results in somewhat more flyballs compared to other pitchers' curves. His sinker has little sinking action compared to a true sinker and has slightly above average velo. His cutter has good "rise", has slightly above average velo and has strong cutting action. His change generates fewer whiffs/swing compared to other pitchers' changeups, is much firmer than usual and has slight armside fade.