STARTERS: Pitch movement, pt. 2
May 19 2013
We last looked at pitch movement in this off-season column. A recap of our findings:
- Pitch movement by itself is not strongly correlated with indicators like Dom (k/9) or Ctl (bb/9) rate.
- Fastball vertical movement has the strongest positive correlation with Dom, and it's far from strong (r=0.33).
- One would think that vertical movement of sliders would have a positive correlation with Dom, but there is no correlation between the two (r=0.02).
- SP whose pitch movement increased from 2011 to 2012 posted an average 6.8 Dom that season. Their average Dom in 2011 was also 6.8.
- SP with increased pitch movement from 2011 to 2012 maintained the same Ctl (2.7) as they had in 2011.
- Those whose pitch movement decreased in 2012...
Almost!
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