Although he has not thrown an MLB pitch in 2020, David Carpenter threw 3,768 pitches that were tracked by the PITCHf/x system between 2010 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason, Spring Training and Fall/Winter Ball. In 2019, he relied primarily on his Fourseam Fastball (94mph) and Slider (85mph). He also rarely threw a Splitter (88mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball is basically never swung at and missed compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. His slider is an extreme flyball pitch compared to other pitchers' sliders and has some two-plane movement. His splitter (take this with a grain of salt because he's only thrown 3 of them in 2019) is basically never swung at and missed compared to other pitchers' splitters, is an extreme flyball pitch compared to other pitchers' splitters and is much firmer than usual.