Chicago White Sox
Although they have not thrown an MLB pitch in 2024, Scott Olsen threw 5,703 pitches that were tracked by the PITCHf/x system between 2007 and 2010, all of them occuring in the MLB Regular Season. In 2010, they relied primarily on their Fourseam Fastball (90mph) and Slider (82mph), also mixing in a Change (84mph). He also rarely threw a Curve (82mph).
In 2010, compared to other LHP:
Their fourseam fastball is basically never swung at and missed compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. Their slider has primarily 12-6 movement and results in somewhat more groundballs compared to other pitchers' sliders. Their change generates fewer whiffs/swing compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups and is slightly firmer than usual. Their curve (take this with a grain of salt because they've only thrown 1 of them in 2010) is thrown extremely hard, has very little depth, is basically never swung at and missed compared to other pitchers' curves, is an extreme flyball pitch compared to other pitchers' curves and has primarily 12-6 movement.