Walks plus hits per inning pitched

In baseball statistics, walks plus hits per inning pitched (WHIP) is a sabermetric measurement of the number of baserunners a pitcher has allowed per inning pitched. WHIP is calculated by adding the number of walks and hits allowed and dividing this sum by the number of innings pitched.[1]

WHIP reflects a pitcher's propensity for allowing batters to reach base, therefore a lower WHIP indicates better performance.

While earned run average (ERA) measures the runs a pitcher gives up, WHIP more directly measures a pitcher's effectiveness against batters.[1] Like ERA, WHIP accounts for pitcher performance regardless of errors and unearned runs.[note 1]

  1. ^ a b MLB Glossary – Walks and hits per inning pitched (WHIP). MLB.com. Retrieved on September 13, 2016.


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