Although he has not thrown an MLB pitch in 2020, Jimmy Yacabonis threw 1,907 pitches that were tracked by the PITCHf/x system between 2016 and 2019, including pitches thrown in the MLB Regular Season and Fall/Winter Ball. In 2019, he relied primarily on his Fourseam Fastball (94mph) and Slider (83mph), also mixing in a Change (87mph). He also rarely threw a Sinker (95mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball has heavy sinking action, has an obvious tail, generates fewer whiffs/swing compared to other pitchers' fourseamers, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly above average velo. His slider sweeps across the zone, has exceptional depth, is an extreme flyball pitch compared to other pitchers' sliders and has below average velo. His change (take this with a grain of salt because he's only thrown 12 of them in 2019) has an obvious armside fade, is much firmer than usual, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it.