Heroes and Zeroes is a series of articles where I use the Wins Probability Added (WPA) metric available at www.fangraphs.com in order to get a little deeper into the box score, and rank each player based on his own weighted plate appearances. This system works because it's easy to rank pitchers and hitters on the same scale. It's only drawback is an inability to calculate fielding and baserunning errors. I include a modification to account for fielding errors to take some of that fallibility away. Players are ranked from most positive impact on the outcome of the game down to the most negative.
Heroes And Zeroes: Cardinals 3, Marlins 1
