Non-MLB
Jhon Romero has thrown 1,181 pitches that have been tracked by the PITCHf/x system between 2021 and 2026, including pitches thrown in the MLB Regular Season, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2026, they have relied primarily on their Fourseam Fastball (93mph), also mixing in a Slider (84mph) and Change (84mph).
In 2026, compared to other RHP:
Their fourseam fastball has less armside movement than typical, results in more flyballs compared to other pitchers' fourseamers and has essentially average velo. Their slider (take this with a grain of salt because they've only thrown 9 of them in 2026) generates an extremely high number of swings & misses compared to other pitchers' sliders, has exceptional depth and is an extreme flyball pitch compared to other pitchers' sliders. Their change (take this with a grain of salt because they've only thrown 4 of them in 2026) is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.