San Francisco Giants
Although they have not thrown an MLB pitch in 2024, Chris Heston threw 3,128 pitches that were tracked by the PITCHf/x system between 2013 and 2017, including pitches thrown in the MLB Regular Season and Spring Training. In 2017, they relied primarily on their Sinker (87mph), also mixing in a Slider (76mph), Fourseam Fastball (88mph), Curve (72mph) and Change (81mph).
In 2017, compared to other RHP:
Their sinker is so slow that it is substantially gravitational, has heavy sinking action, is basically never swung at and missed compared to other pitchers' sinkers, results in more flyballs compared to other pitchers' sinkers and has slight armside run. Their slider comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone and is an extreme flyball pitch compared to other pitchers' sliders. Their fourseam fastball comes in below hitting speed, has heavy sinking action, results in somewhat more groundballs compared to other pitchers' fourseamers and has slight armside run. Their curve (take this with a grain of salt because they've only thrown 12 of them in 2017) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' curves, has sweeping glove-side movement, results in more flyballs compared to other pitchers' curves and has a sharp downward bite. Their change (take this with a grain of salt because they've only thrown 11 of them in 2017) generates an extremely high number of swings & misses compared to other pitchers' changeups, dives down out of the zone, has below average velo, results in somewhat more flyballs compared to other pitchers' changeups and has slight armside fade.