Cleveland Guardians
Although they have not thrown an MLB pitch in 2024, Bruce Chen threw 13,023 pitches that were tracked by the PITCHf/x system between 2007 and 2015, including pitches thrown in the MLB Regular Season and Spring Training. In 2015, they relied primarily on their Sinker (85mph) and Cutter (82mph), also mixing in a Change (77mph) and Curve (73mph). He also rarely threw a Fourseam Fastball (87mph).
In 2015, compared to other LHP:
Their sinker is so slow that it is substantially gravitational, generates more whiffs/swing compared to other pitchers' sinkers and results in somewhat more flyballs compared to other pitchers' sinkers. Their cutter comes in below hitting speed, results in somewhat more groundballs compared to other pitchers' cutters, has some natural sink and has strong cutting action. Their change (take this with a grain of salt because they've only thrown 15 of them in 2015) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' changeups and is an extreme flyball pitch compared to other pitchers' changeups. Their curve (take this with a grain of salt because they've only thrown 12 of them in 2015) is basically never swung at and missed compared to other pitchers' curves, has sweeping glove-side movement, is an extreme flyball pitch compared to other pitchers' curves, has a sharp downward bite and has slightly below average velo. Their fourseam fastball (take this with a grain of salt because they've only thrown 1 of them in 2015) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers and has some added backspin.