Although they have not thrown an MLB pitch in 2023, Cody Stashak threw 1,296 pitches that were tracked by the PITCHf/x system between 2019 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Fourseam Fastball (91mph) and Slider (82mph). He also rarely threw a Change (84mph).
In 2022, compared to other RHP:
His fourseam fastball has good "rising" action, has less armside movement than typical, results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly below average velo. His slider is an extreme flyball pitch compared to other pitchers' sliders and has less than expected depth. His change (take this with a grain of salt because he's only thrown 4 of them in 2022) generates an extremely high number of swings & misses compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups and has a lot of backspin.