Non-MLB
Although they have not thrown an MLB pitch in 2024, Roman Mendez threw 1,130 pitches that were tracked by the PITCHf/x system between 2012 and 2023, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2023, they relied primarily on their Slider (84mph), Fourseam Fastball (92mph) and Sinker (92mph), also mixing in a Splitter (85mph).
In 2023, compared to other RHP:
Their slider has less than expected depth. Their fourseam fastball has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, has less armside run than typical and results in somewhat more flyballs compared to other pitchers' sinkers. Their splitter generates a high number of swings & misses compared to other pitchers' splitters and results in somewhat more flyballs compared to other pitchers' splitters.