Seattle Mariners
Although they have not thrown an MLB pitch in 2024, Charlie Furbush threw 4,569 pitches that were tracked by the PITCHf/x system between 2011 and 2015, including pitches thrown in the MLB Regular Season and Spring Training. In 2015, they relied primarily on their Slider (82mph), Fourseam Fastball (92mph) and Sinker (92mph), also mixing in a Curve (78mph). He also rarely threw a Change (85mph).
In 2015, compared to other LHP:
Their slider sweeps across the zone, has exceptional depth and generates a very high amount of groundballs compared to other pitchers' sliders. Their fourseam fastball has heavy sinking action, has essentially average velo and has slightly less natural movement than typical. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, has slightly above average velo and has some natural sinking action. Their curve (take this with a grain of salt because they've only thrown 16 of them in 2015) has sweeping glove-side movement, is slightly harder than usual and results in somewhat more flyballs compared to other pitchers' curves. Their change (take this with a grain of salt because they've only thrown 1 of them in 2015) is basically never swung at and missed compared to other pitchers' changeups, is an extreme flyball pitch compared to other pitchers' changeups, has a lot of backspin and is slightly firmer than usual.