Positional Adjustment
I just implemented a very slight change to how we calculate the positional adjustment for WAR. Previously we were calculating it based on full games played at a position. Now it is being calculated by innings played, which is a bit more precise.
This may shift a player’s positional adjustment up or down a run at the most, and will mainly impact multi-position players, but that’s about it.
David Appelman is the creator of FanGraphs.
So what is the new formula?
The formula is exactly the same, but instead of giving a guy a full game’s positional adjustment for playing only 5 innings in the field, he now only gets 5 innings of adjustment.