Baltimore Orioles
Although they have not thrown an MLB pitch in 2024, Jamie Walker threw 1,070 pitches that were tracked by the PITCHf/x system between 2007 and 2009, including pitches thrown in the MLB Regular Season and Spring Training. In 2009, they relied primarily on their Change (78mph), Sinker (86mph) and Slider (75mph), also mixing in a Curve (73mph).
In 2009, compared to other LHP:
Their change has below average velo and results in somewhat more flyballs compared to other pitchers' changeups. 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 and results in more flyballs compared to other pitchers' sinkers. Their slider comes in below hitting speed, sweeps across the zone, has less than expected depth and results in somewhat more flyballs compared to other pitchers' sliders. Their curve (take this with a grain of salt because they've only thrown 16 of them in 2009) is basically never swung at and missed compared to other pitchers' curves, has sweeping glove-side movement, has below average velo and results in somewhat more flyballs compared to other pitchers' curves.