2012 Fantasy Baseball Stats You Should Know: ISO Edition

John Mayberry, LF, Philadelphia Phillies

Simply put, ISO is the measure of power; ISO measures a hitter’s ability to hit for extra bases. It’s a stat fantasy GMs should be interested in because power is at an absolute premium in the post-juice era. Exactly ten batters posted a slugging percentage over .550 last year. Compare that to 1999 when 29 batters slugged over .550 including names like Carl Everett,