Walks plus hits per inning pitched
From Academic Kids
In baseball, walks plus hits per inning pitched (WHIP) is a sabermetric measurement of how many baserunners a pitcher is responsible for allowing per inning pitched. It gives a general measure of a pitcher's ability to keep batters off base. A WHIP of around 1.15 or below will place a pitcher among the top ten in Major League Baseball.
As indicated by the name, it is calculated by adding the number of walks plus hits allowed divided by the number of innings pitched.
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