STARTERS: Expected Ctl, Dom surgers and faders

When forecasting future changes in SP performance, one effective forward-looking method is to compare strikeout and walk levels with command sub-indicators like swinging strike rate and ball percentage.

Our 2013 research on swinging strike rates (SwK%) showed that SwK% has a strong link with dominance rate (K/9).

We can extrapolate a SP's expected Dom by looking at the correlation between SwK% level and Dom:

  • xDom Ranges by SwK% Level
    
                ------xDom by Percentile----
    SwK% Range  10th  25th  50th  75th  90th
    ==========  ====  ====  ====  ====  ====
    12.0%       8.7   9.1   9.6  10.2  10.6
    11.5-11.9%   8.2   8.5   9.4   9.9  10.2
    11.0-11.4%   6.5   7.3   8.2   9.2   9.5
    10.5-10.9%   7.2   7.7   8.0   8.6   9.0
    10.0-10.4%   6.8  ...

Almost!

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