See copyright notice at the bottom of this page.
List of All Posters
UZR, multiple positions (July 7, 2003)
Discussion ThreadPosted 6:41 p.m.,
July 7, 2003
(#3) -
ADP
This is terrific work. It also suggests a better way of comparing players at diffrent positions. If the average SS contributes 19 more runs with his glovethan the average RF, we can use this amount to perform position adjustments.
This is better than the usual approach of using the average offensive performance at each position, which is based on the assumption that the average SS and the average RF are equally valuable.
The "equal value assumption" has always troubled me, both because it is an a priori assumption based on computational convenience and not hard evidence, and because it is clearly not true in other sports or even in other levels of baseball (the average high school SS is much more valuable than the average right fielder).