With one month of the season behind us, there's enough of a sample size to get a feel for who is underperforming on the mound. One way to do this is to use QuikERA, or QERA for short. QERA takes a pitcher's strikeout rate, walk rate and ground-ball rate -- three components that stabilize quickly in a pitcher's performance -- and spits out an adjusted ERA figure that is more predictive than traditional ERA. In short, it's a cheat sheet -- for real life and for fantasy baseball -- that tells you who will pitch better or worse going forward.
2dTom Carpenter and Greg Rosenstein