Pitchf/x Page Fixes

Just some quick notes on the 2010 pitchf/x data:

– There appears to be some new pitch type categorizations that were breaking some pitchf/x pages. There is EP (Eephus Pitch), SC (Screwball), KC (Knuckle Curve) and FO (Forkball).

– SC and FO I have temporarily lumped into FT (Two-Seam Fastball). I’ve been explained that screwballs (and possibly forkballs) are not really two seam fastballs, but there have been a total of 19 screwballs thrown this year, 18 of them by Daniel Ray Herrera and then the other one was thrown by Dallas Braden. There have been 12 Forkballs thrown, 8 by Livan Hernandez and 4 by Kenshin Kawakami. Overall, these two pitches didn’t seem to warrant their own category, but I can be convinced otherwise.

– Eephus pitches (EP) I have lumped into the UN (Unknown) category. Vicente Padilla has thrown all 16 of them.

David Appelman is the creator of FanGraphs.

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13 years ago

David, I’m curious why you chose to lump SC and FO with FT. In terms of velocity, break and usage I would think they’d be more similar to CB or CU. Or is that assumption wrong?

13 years ago
Reply to  Rick

A screwball breaks the opposite way from a curve or cutter.