Arizona Diamondbacks
Although they have not thrown an MLB pitch in 2024, Jace Peterson threw 121 pitches that were tracked by the PITCHf/x system between 2018 and 2023, all of them occuring in the MLB Regular Season. In 2023, they relied primarily on their Fourseam Fastball (57mph).
In 2023, compared to other RHP:
Their fourseam fastball comes in below hitting speed, is basically never swung at and missed compared to other pitchers' fourseamers, is straight as an arrow and is an extreme flyball pitch compared to other pitchers' fourseamers.