We were discussing defensive analysis recently. Me, AROM, CW, Tango, Peter and we talked about lots of things. One of which is the regular availability of any stat that people want to use in discussions, and to make it readily available. Sean Forman recently added AROM’s TotalZone to his site, and you can check out the leaders daily. That’s always nice. People have been enjoying Fangraphs defensive leader boards. Both of these resources will also show you offensive leaders. Offensive stats rarely have the same level of skepticism, and hopefully we’ll get there with defensive stats as well.
I can’t offer you anything special with offensive stats, so I am not going to. I could offer you something different, and maybe I will, but that’s pretty complicated. The fact is daily defensive stats is complicated. Fortunately, SG of Replacement Level Yankee Weblog is a genius. His hard work has enabled us to be able to generate my defensive system, DRS (the one before Bill James’), on a daily basis. Naturally, I cannot thank SG enough, and I am very appreciative of all he’s done, both with this and his historical file at RLYW.
Here are the DRS numbers through May 31, 2010.
With the various critiques of the methodologies that you hear all the time, TZ and UZR, having another option may provide you more data to feel better about your players. Plus, DRS comes from a different stat source, and that will allow us to see where some difference exist. For those that are not familiar with my methodology, here is the method. Now, that is dated 2005, but I really developed it a lot earlier, and that’s where I tried to refine it. The Mets newsgroup got the actual developmental changes.
So when you hear about people developing methods, offensive or defensive, recall that people were doing it before there was really an internet with all these websites. I wanted to link those so you could see that not only do I rely on SG, I didn’t develop this without lots of critique and feedback from smarter people like Ron Johnson and Dale Stephenson. Read through those threads and you can see some interesting Defensive Average work from Dale and others. I enjoy reading those old threads.
At any rate, thanks to SG’s Excel skills, I hope to update this spreadsheet often. I think weekly right now. It can be more often, but I have a job, and a scatterbrain. Please let me know if you see something that doesn’t seem to make sense - somehow a player is missing, or is on the wrong team. It shouldn’t happen, but I know that spreadsheets aren’t perfect.
Posted: June 01, 2010 at 11:37 PM | 41 comment(s)
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