STARTERS: Expected Ctl, Dom gainers 2020

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...

Almost!

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