Non-MLB
Although they have not thrown an MLB pitch in 2024, Gustavo Chacin threw 980 pitches that were tracked by the PITCHf/x system between 2007 and 2011, including pitches thrown in the MLB Regular Season and Spring Training. In 2011, they relied primarily on their Fourseam Fastball (86mph), also mixing in a Change (78mph), Cutter (83mph) and Sinker (85mph). He also rarely threw a Curve (72mph).
In 2011, compared to other LHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 13 of them in 2011) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' fourseamers and is an extreme flyball pitch compared to other pitchers' fourseamers. Their change (take this with a grain of salt because they've only thrown 5 of them in 2011) comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' changeups and is an extreme flyball pitch compared to other pitchers' changeups. Their cutter (take this with a grain of salt because they've only thrown 4 of them in 2011) comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' cutters and is an extreme flyball pitch compared to other pitchers' cutters. Their sinker (take this with a grain of salt because they've only thrown 3 of them in 2011) is so slow that it is substantially gravitational, is basically never swung at and missed compared to other pitchers' sinkers and is an extreme flyball pitch compared to other pitchers' sinkers. Their curve (take this with a grain of salt because they've only thrown 1 of them in 2011) is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves, has below average velo, has little depth and has slight glove-side movement.