When I started this series which attempts to determine the projected fantasy value for prospects, I knew today’s step would be the hardest. The issue was converting various pitch grades (and control) into a workable framework for a pitcher’s overall production value. I thought I may not end up with a workable answer, but the following results have promise beyond just grading pitches.
I was able to piece together work from various articles and gave each pitch a grade based on the ERA scale. Combining per-pitch-ERA’s with a control value, it looks like we can estimate a pitcher’s overall value.