Ross Detwiler pitches a lot of fastballs. I mean, a historical amount of fastballs. Looking at the chart below, it is Detwiler, Colon, then there is 50 feet of David Justice trying to put a dollar bill into a soda machine then everyone else.
Last year, Detwiler pitched fastball 80% of the time. Looking deeper into the Pitchfx numbers it look like 46% of his pitches are four seam fastballs(same as last year) and 44% are the two seam variety. He has a pitch selection that is very unique. The only other pitcher in baseball this year that pitches a bigger % of fastballs than Det is Kenley Jansen, a reliever. Aroldis Chapmen slips in his slider about 15% of the time.
- Ross Detwiler: One Trick Pony (howdoibaseball.com)
- Fastball first: Pitchers succeed by keeping it simple (mlb.mlb.com)
- Tipping the Pitch: The Fastball. Two-seamers and Four-Seamers (nats101.com)