Pittsburgh Pirates
Thomas Harrington has thrown 1,632 pitches that have been tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (93mph), Slider (82mph) and Splitter (84mph), also mixing in a Cutter (88mph). He also rarely throws a Sinker (92mph) and Curve (80mph).
In 2025, compared to other RHP:
Their fourseam fastball has some natural sinking action, has essentially average velo and has slight armside run. Their slider sweeps across the zone, generates fewer whiffs/swing compared to other pitchers' sliders and results in more flyballs compared to other pitchers' sliders. Their splitter is a real worm killer that generates an extreme number of groundballs compared to other pitchers' splitters and has some natural sink to it. Their cutter is basically never swung at and missed compared to other pitchers' cutters and is an extreme flyball pitch compared to other pitchers' cutters. Their sinker (take this with a grain of salt because they've only thrown 9 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has little sinking action compared to a true sinker. Their curve (take this with a grain of salt because they've only thrown 3 of them in 2025) is basically never swung at and missed compared to other pitchers' curves, results in more flyballs compared to other pitchers' curves and is slightly harder than usual.