Comparing strikeout and walk levels with command sub-indicators like swinging strike rate and ball percentage can be an effective way to forecast changes in a starting pitcher's command.
Our research on swinging strike rates (SwK%) showed that SwK% has a strong link with dominance rate (K/9). As such, we can use it to calculate a SP's expected Dom (xDom).
Here is an updated correlation table between SwK% and Dom based on data from 2017 to 2019:
xDom Ranges by SwK% Level ------xDom by Percentile---- SwK% Range 10th 25th 50th 75th 90th ========== ==== ==== ==== ==== ==== 15.0% 10.7 11.0 11.7 12.2 12.8 14.0-14.9% 10.4 10.7 11.6 12.3 12.9 13.0-13.9% 9.1 9.6 10.5 10.8 11.5 12.5-12.9% 8.7 9.2...
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