Non-MLB
Although they have not thrown an MLB pitch in 2024, Chris Ellis threw 710 pitches that were tracked by the PITCHf/x system between 2019 and 2023, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2023, they relied primarily on their Fourseam Fastball (92mph) and Slider (86mph). He also rarely threw a Change (86mph) and Curve (81mph).
In 2023, compared to other RHP:
Their fourseam fastball is basically never swung at and missed compared to other pitchers' fourseamers, has an obvious tail and has essentially average velo. Their slider generates an extremely high number of swings & misses compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders and has primarily 12-6 movement. Their change (take this with a grain of salt because they've only thrown 2 of them in 2023) is basically never swung at and missed compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups, is slightly firmer than usual, has slight armside fade and has some natural sink to it. Their curve (take this with a grain of salt because they've only thrown 2 of them in 2023) is basically never swung at and missed compared to other pitchers' curves, has primarily 12-6 movement, results in more flyballs compared to other pitchers' curves and is slightly harder than usual.