Rosscup used his fastball 40% of the time in 2019, averaging 92.4 mph with an impressive 31.9% whiff rate. He generated the majority of those whiffs above the belt, and might be better served going up there more often.
Rosscup’s slider is his dominant pitch (60% usage) and it was tough to hit in 2019 (46.2% whiff rate). He does a good job burying it glove-side and decimated hitters with a ridiculous 66.7% whiff rate and 60.9% K rate when he located there in 2019, but was far less effective when he didn’t.
Rosscup’s slider was by far his best pitch, racking up a strong 29.7% swinging-strike rate and a 54.9% chase rate while limiting batters to a pedestrian .111 AVG.
Rosscup’s fastball was not a great pitch, allowing a stout .375/.444/.813 triple-slash. The pitch was a clear secondary offering.