Non-MLB
Although they have not thrown an MLB pitch in 2024, Willians Astudillo threw 100 pitches that were tracked by the PITCHf/x system between 2018 and 2022, all of them occuring in the MLB Regular Season. In 2022, they relied primarily on their Change (43mph) and Fourseam Fastball (71mph).
In 2022, compared to other RHP:
Their change (take this with a grain of salt because they've only thrown 17 of them in 2022) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action and results in somewhat more flyballs compared to other pitchers' changeups. Their fourseam fastball (take this with a grain of salt because they've only thrown 6 of them in 2022) 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 slightly less natural movement than typical.