Walks And Hits Per Inning Pitched (WHIP)

Definition

WHIP is one of the most commonly used statistics for evaluating a pitcher's performance. The statistic shows how well a pitcher has kept runners off the basepaths, one of his main goals. The formula is simple enough -- it's the sum of a pitcher's walks and hits, divided by his total innings pitched.

The pitchers with the lowest WHIPs are generally the best pitchers in the league -- which makes sense, because the best pitchers should be able to prevent baserunners. However, WHIP does not consider the way in which a hitter reached base. (Obviously, home runs are more harmful to pitchers than walks.)

Hit batsmen, errors and hitters who reach via fielder's choice do not count against a pitcher's WHIP.

Origin

Daniel Okrent, a writer who invented rotisserie league fantasy baseball, coined the term in 1979, initially calling it innings pitched ratio. The term eventually developed into WHIP.

Example

Watch: Jason Motte's WHIP goes up as a result of hit allowed.

In A Call

"whip" -- as an acronym, not spelled out