Although they have not thrown an MLB pitch in 2023, Chris Ellis threw 657 pitches that were tracked by the PITCHf/x system between 2019 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Fourseam Fastball (93mph) and Slider (87mph), also mixing in a Change (87mph) and Curve (83mph).
In 2022, compared to other RHP:
His fourseam fastball has an obvious tail, is an extreme flyball pitch compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. His slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, generates a high number of swings & misses compared to other pitchers' sliders and has primarily 12-6 movement. His change (take this with a grain of salt because he's only thrown 14 of them in 2022) is basically never swung at and missed compared to other pitchers' changeups, is much firmer than usual, has slight armside fade and has some natural sink to it. His curve (take this with a grain of salt because he's only thrown 7 of them in 2022) has very little depth, has primarily 12-6 movement, is much harder than usual and results in more flyballs compared to other pitchers' curves.