Seattle Mariners
Although they have not thrown an MLB pitch in 2024, Brian Ellington threw 1,902 pitches that were tracked by the PITCHf/x system between 2015 and 2017, all of them occuring in the MLB Regular Season. In 2017, they relied primarily on their Fourseam Fastball (98mph), also mixing in a Slider (88mph) and Change (89mph). He also rarely threw a Curve (99mph).
In 2017, compared to other RHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is thrown at a speed that's borderline unfair, has some natural sinking action and has slight armside run. Their slider is much harder than usual, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their change is thrown extremely hard, generates more whiffs/swing compared to other pitchers' changeups, has a lot of backspin, results in somewhat more flyballs compared to other pitchers' changeups and has slight armside fade. Their curve (take this with a grain of salt because they've only thrown 1 of them in 2017) is thrown extremely hard, has very little depth, is basically never swung at and missed compared to other pitchers' curves, has primarily 12-6 movement and results in more flyballs compared to other pitchers' curves.