I noticed Lee and Doc both slipped a little with the update. Dave, did you take note of any significant changes to the WAR leaderboards? I recall when B-R updated theirs a few weeks ago, Sabathia leapfrogged King Felix.
Comment by Greg Maddux — October 5, 2010 @ 12:06 pm
There were really no significant changes because we use 5 year regressed and one extra year isn’t going to make a whole lot of difference. At the very most a player may have changed 3 runs with rounding (some Yankee players since the park is new and the home/away numbers were considerably different in the two years), but that’s about it.
David – how do you handle new parks (like NY on Minn)?
Do you just regress it with previous years of the old park to get the 5year data set? If a new park is substantially different do you go back and update old WAR data once a 5 year data set can be obtained on a new park?