Non-MLB
Although they have not thrown an MLB pitch in 2024, Felix Doubront threw 9,030 pitches that were tracked by the PITCHf/x system between 2010 and 2016, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2016, they relied primarily on their Fourseam Fastball (86mph), also mixing in a Change (82mph) and Curve (74mph).
In 2016, compared to other LHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 13 of them in 2016) comes in below hitting speed, is straight as an arrow and is an extreme flyball pitch compared to other pitchers' fourseamers. Their change (take this with a grain of salt because they've only thrown 2 of them in 2016) is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action, is an extreme flyball pitch compared to other pitchers' changeups and has a lot of backspin. Their curve (take this with a grain of salt because they've only thrown 2 of them in 2016) is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves, has a sharp downward bite and has slightly below average velo.