how is whip calculated
In baseball statistics, walks hits per inning pitched (WHIP) is a sabermetric measurement of the number of baserunners a pitcher has allowed per inning pitched. WHIP reflects a pitcher's propensity for allowing batters to reach base, therefore a lower WHIP indicates better performance. WHIP is calculated by adding the number of walks and hits allowed and dividing this sum by the number of innings pitched. The stat was invented in 1979 by writer Daniel Okrent, who called the metric innings pitched ratio at the time.