WHIP VS. BABIP. One of the few sabermetrics to enter mainstream usage, Walks Plus Hits per Inning Pitched measures the ratio at which a pitcher allows a batter to reach base. Batting Average on Balls In Play (BABIP) calculates how many balls in play against a pitcher go for hits — therefore also measuring a defense's ability to turn balls into outs.

What's the deal? Used heavily in baseball fantasy leagues to grade pitchers, WHIP is considered a pitcher's equivalent to a hitter's on-base plus slugging (OPS). Some fantasy buffs, however, regard WHIP as too simplistic and say BABIP is a better measurement of a pitcher's performance.

Crack the WHIP. WHIP is calculated by adding the number of walks and hits allowed and dividing the sum by the number of innings pitched. A WHIP close to, or below, 1 baserunner per inning indicates better performance. For the season, the Braves' Ervin Santanta has allowed 9 walks and 32 hits in 40-2/3 innings for a 1.008 WHIP.

Why not WHIP? For Santana his BABIP is determined by calculating hits (32), minus homers (2), divided by the sum of at-bats (145), minus strikeouts (43), minus homers (2), plus sacrifice flies (0). Santana's .300 BABIP is slightly higher than the league average of .296.

So which is better? While Santana's averages are pretty much the norm, it's hard to argue his value (fantasy or otherwise) when he's 4-0 on the season.

*All figures as of Friday.

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