Name Pos WPA -WPA +WPA Jose Molina C -0.47 -1.20 0.72 Nick Swisher OF -0.46 -3.22 2.75 Ramiro Pena 3B/SS -0.43 -1.20 0.77 Kevin Cash C -0.34 -0.47 0.13 Angel Berroa 3B -0.24 -0.25 0.01 Hideki Matsui DH -0.19 -3.37 3.18 Robinson Cano 2B -0.16 -3.56 3.40 Fran. Cervelli C -0.13 -0.80 0.67 Xavier Nady OF -0.08 -0.48 0.40 Cody Ransom 3B -0.02 -0.74 0.72 Brett Gardner OF 0.26 -2.01 2.27 Alex Rodriguez 3B 0.82 -1.26 2.08 Derek Jeter SS 0.88 -3.53 4.41 Mark Teixeira 1B 0.89 -3.83 4.72 Melky Cabrera OF 0.92 -2.69 3.61 Jorge Posada C 1.34 -1.34 2.68 Johnny Damon OF 2.25 -3.19 5.44
The above stats are via FanGraphs.com today.
Here’s what each of these statistics are:
WPA (win probability added): WPA is the difference in win expectancy (WE) between the start of the play and the end of the play. That difference is then credited/debited to the batter and the pitcher. Over the course of the season, each players’ WPA for individual plays is added up to get his season total WPA.
+WPA (win advancement): The amount of positive wins a player contributed to his team, including only the plays where he increased his team’s win expectancy.
-WPA (loss advancement): The amount of negative wins a player contributed to his team, including only the plays where he decreased his team’s win expectancy.
In a nutshell, WPA is the net sum of +WPA and -WPA.
And, these numbers show us that, offensively, so far this season, Johny Damon has helped the Yankees win games, overall, the most of their regular players, and Nick Swisher, offensively, has cost the Yankees some wins, overall, the most of their regular players.
Something for those to who think Nick Swisher has helped the Yankees this season to think about…