Non-MLB
Although they have not thrown an MLB pitch in 2024, Ian Krol threw 4,266 pitches that were tracked by the PITCHf/x system between 2013 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Cutter (88mph) and Fourseam Fastball (93mph), also mixing in a Curve (79mph), Change (85mph) and Sinker (93mph).
In 2022, compared to other LHP:
Their cutter generates an extremely high number of swings & misses compared to other pitchers' cutters, has slightly above average velo, has some natural sink and has strong cutting action. Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly above average velo. Their curve has a sharp downward bite and is slightly harder than usual. Their change is an extreme flyball pitch compared to other pitchers' changeups, generates more whiffs/swing compared to other pitchers' changeups, is slightly firmer than usual and has some natural sink to it. Their sinker is an extreme flyball pitch compared to other pitchers' sinkers, has surprisingly little armside run, generates more whiffs/swing compared to other pitchers' sinkers and has well above average velo.