RESEARCH: Expected WHIP

Introduction

When a pitcher experiences good or bad luck with regard to hit rate, Expected ERA (xERA) takes this into account, along with a number of other factors, to determine what a pitcher’s ERA ought to have been. But what about WHIP? Hit rate luck plays a part in both the numerator (hits) and denominator (outs). How much does it impact WHIP?

Methodology

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  For more information about the terms used in this article, see our Glossary Primer.