The last post introduced the topic at hand and looked at the San Francisco Giants as they were the team with the biggest overall spread between their team FSR and UZR ratings. They happened to have much higher UZRs than FSRs in both years.
The two other highly outlying dots on the same side as the Giants are the 2009 Mariners and 2010 Diamondbacks. On the other side of the disagreement line are the Colorado Rockies. While the fans were of a dimmer opinion of the Giants’ fielders than UZR was by a large margin, the fans had a much higher feeling on the Rockies than UZR claims is warranted.
The Rockies had a +39 FSR in 2009 and a +22 in 2010 but their UZR was a mediocre -20 in 2009 and a slightly worse -28 in last season. Just as the Giants’ positive gap between UZR and FSR was the biggest in the league, the Rockies negative gap between the two in both 2009 and 2010.
Coors Field could be having an effect here, especially since the biggest differences between FSR and UZR at the individual level are almost entirely due to the outfielders. In 2009, Dexter Fowler and Brad Hawpe had a combined FSR score of -2 runs, but according to UZR were worth an astoundingly awful -36.2. This last season, it was Ryan Spilboroghs and Carlos Gonzalez’s turn. The fans rated Spilboroghs at -1 FSR and Carlos Gonzalez at +10 FSR while UZR pegged them at -16.7 and -2.7 runs respectively. The outfield is not the entirety of the discrepancy between the two systems, but it is clearly the majority factor.
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