Although they have not thrown an MLB pitch in 2023, Triston McKenzie threw 5,545 pitches that were tracked by the PITCHf/x system between 2020 and 2022, all of them occuring in the MLB Regular Season. In 2022, they relied primarily on their Fourseam Fastball (93mph), Slider (87mph) and Curve (80mph).
In 2022, compared to other RHP:
His fourseam fastball has good "rising" action, has less armside movement than typical, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. His slider has much less depth than expected and is much harder than usual. His curve generates a high number of swings & misses compared to other pitchers' curves, has primarily 12-6 movement and results in somewhat more flyballs compared to other pitchers' curves.