St. Louis Cardinals
Although they have not thrown an MLB pitch in 2024, J.A. Happ threw 32,864 pitches that were tracked by the PITCHf/x system between 2008 and 2021, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2021, they relied primarily on their Fourseam Fastball (91mph), also mixing in a Sinker (89mph), Slider (83mph) and Change (86mph). He also rarely threw a Curve (77mph).
In 2021, compared to other LHP:
Their fourseam fastball has essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. Their sinker has less armside run than typical and has some natural sinking action. Their slider generates fewer whiffs/swing compared to other pitchers' sliders and results in somewhat more flyballs compared to other pitchers' sliders. Their change generates fewer whiffs/swing compared to other pitchers' changeups, is much firmer than usual, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it. Their curve results in more flyballs compared to other pitchers' curves and has primarily 12-6 movement.