<p><a target="_blank" rel="noopener noreferrer" href="https://bbcardstats.com/regression-regression-on-the-wall-which-pitching-runs-saved-measure-explains-the-most-variance-of-all/">https://bbcardstats.com/regression-regression-on-the-wall-which-pitching-runs-saved-measure-explains-the-most-variance-of-all/</a></p>

Here’s a bit more on how the empirical fielding-independent pitcher metric—eFIP— compares with Baseball Reference’s and Fangraphs’s pitching-runs saved measures. I’ve previously shown that eFIP does a better job in out-of-sample predictions, which is an i...

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