Sandy Alcantara has thrown 3,832 pitches that have been tracked by the PITCHf/x system between 2017 and 2019, including pitches thrown in the MLB Regular Season and Fall/Winter Ball. In 2019, he has relied primarily on his Fourseam Fastball (96mph), Sinker (96mph) and Slider (86mph), also mixing in a Change (90mph) and Curve (81mph). He also rarely throws a Cutter (94mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball has some natural sinking action, has well above average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. His sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, is blazing fast, results in somewhat more groundballs compared to other pitchers' sinkers, has slight armside run and has some natural sinking action. His slider results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. His change is thrown extremely hard, has slight armside fade and has some natural sink to it. His curve has little depth, is slightly harder than usual and has primarily 12-6 movement. His cutter (take this with a grain of salt because he's only thrown 1 of them in 2019) is thrown at a speed that's borderline unfair, is basically never swung at and missed compared to other pitchers' cutters, is an extreme flyball pitch compared to other pitchers' cutters and has little cutting action.