Quick question about the difference between these two metrics. I was just looking at Sean Smith's WAR data, which has been updated to include the 2009 season. I looked at Beltran's page where he had an astounding 4.4 WAR in 81 games. FanGraphs had him at a considerably lower, but still excellent 2.9 WAR for the year. The biggest difference between the two was Beltran's defensive numbers. His UZR was a paltry -4.8 while his TZ was a superb 13. How can the difference be so great between the number? I know UZR is the more advance stat, and better stat, and I also know UZR used Shea Stadium data in calculating it, which probably hurt Beltran's numbers. Finally, I've probably asked this before, but what were Beltran's Dewan numbers last season, just for further comparison.
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