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Thursday, September 27, 2007

2007 MLB Year To Date Fielding Data

I had a request to post my +- runs translations of Hardball Times' zone rating data for players to date. Here it is:

All stats current through yesterday, 25 September.

I'll update it next week once the final data are in, but I thought folks might like to have access to this spreadsheet. If anyone wants the original excel doc, just shoot me an e-mail.

My methods for these translations are described in detail here. Conversions from plays to runs are based on Chris Dial's runs/play values in this post.

Have fun!

Update: John Dewan's Stat of the Week today released the top 5 and bottom 5 defensive shortstops in baseball using 2007 data. Here they are, as well as how they stack up to the above fielding ratings (remember, Dewan's stats are reported in +-plays, while THT's data are translated to +-runs...that's why Dewan's numbers look more extreme):

Name
Dewan+/-
THT+/- (rank)
Tulowitzki
+34
+28 (1st)
McDonald
+26
+18 (3rd)
Vizquel
+19
+14 (4th)
Bartlett
+19
+6 (10th)
Pena
+18
+23 (2nd)
Eckstein
-15
-7 (12th from last)
Young
-15
-14 (6th from last)
Harris
-19
-1 (~average)
Ramirez
-35
-22 (2nd to last)
Jeter
-35
-27 (last)
Not perfect agreement, but pretty darn consistent. Correlation coefficient = 0.95, which makes me plenty happy with the match. Biggest discrepancies are with Brendan Harris and Jason Bartlett.