Although they have not thrown an MLB pitch in 2023, Chi Chi González threw 5,309 pitches that were tracked by the PITCHf/x system between 2014 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Slider (84mph), Fourseam Fastball (93mph) and Sinker (92mph), also mixing in a Change (85mph).
In 2022, compared to other RHP:
His slider is basically never swung at and missed compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders and has short glove-side cut. His fourseam fastball has heavy sinking action, generates fewer whiffs/swing compared to other pitchers' fourseamers, has less armside movement than typical, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. His sinker has less armside run than typical, results in somewhat more groundballs compared to other pitchers' sinkers and has some natural sinking action. His change is basically never swung at and missed compared to other pitchers' changeups, is slightly firmer than usual, has slight armside fade and has some natural sink to it.