Chicago Cubs
Although they have not thrown an MLB pitch in 2024, Dan Haren threw 28,527 pitches that were tracked by the PITCHf/x system between 2007 and 2015, including pitches thrown in the MLB Regular Season and Spring Training. In 2015, they relied primarily on their Cutter (84mph) and Sinker (87mph), also mixing in a Curve using a Knuckle Curve grip (77mph), Fourseam Fastball (87mph) and Splitter (82mph).
In 2015, compared to other RHP:
Their cutter comes in below hitting speed, has extreme cut action and results in more flyballs compared to other pitchers' cutters. Their sinker is so slow that it is substantially gravitational, is basically never swung at and missed compared to other pitchers' sinkers, has surprisingly little armside run, has little sinking action compared to a true sinker and results in somewhat more flyballs compared to other pitchers' sinkers. Their curve using a knuckle curve grip generates more whiffs/swing compared to other pitchers' curves, results in somewhat more flyballs compared to other pitchers' curves and has slightly below average velo. Their fourseam fastball comes in below hitting speed, is basically never swung at and missed compared to other pitchers' fourseamers, has slightly less natural movement than typical and has some added backspin. Their splitter (take this with a grain of salt because they've only thrown 17 of them in 2015) is basically never swung at and missed compared to other pitchers' splitters, results in more flyballs compared to other pitchers' splitters and has slightly below average velo.