Chicago Cubs
Although they have not thrown an MLB pitch in 2023, Michael Rucker threw 1,384 pitches that were tracked by the PITCHf/x system between 2021 and 2022, all of them occuring in the MLB Regular Season. In 2022, they relied primarily on their Fourseam Fastball (95mph) and Slider (86mph), also mixing in a Curve (81mph), Change (90mph) and Cutter (88mph). He also rarely threw a Sinker (94mph).
In 2022, compared to other RHP:
His fourseam fastball results in somewhat more flyballs compared to other pitchers' fourseamers and has slightly above average velo. His slider has exceptional depth, generates a high number of swings & misses compared to other pitchers' sliders and results in somewhat more groundballs compared to other pitchers' sliders. His curve has sweeping glove-side movement, generates fewer whiffs/swing compared to other pitchers' curves and is slightly harder than usual. His change is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups, has slight armside fade and has some natural sink to it. His cutter generates an extremely high number of swings & misses compared to other pitchers' cutters, has heavy sink, is an extreme flyball pitch compared to other pitchers' cutters and has strong cutting action. His sinker (take this with a grain of salt because he's only thrown 3 of them in 2022) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has surprisingly little armside run, has little sinking action compared to a true sinker and has slightly above average velo.