Washington Nationals
Although they have not thrown an MLB pitch in 2024, Sean West threw 1,849 pitches that were tracked by the PITCHf/x system between 2009 and 2010, all of them occuring in the MLB Regular Season. In 2010, they relied primarily on their Fourseam Fastball (91mph) and Slider (81mph), also mixing in a Sinker (90mph) and Change (82mph).
In 2010, compared to other LHP:
Their fourseam fastball has heavy sinking action, has essentially average velo and results in somewhat more groundballs compared to other pitchers' fourseamers. Their slider has some two-plane movement. Their sinker has less armside run than typical. Their change is basically never swung at and missed compared to other pitchers' changeups, has slight armside fade and has some natural sink to it.