I initially created Baseball Graphs to develop new and better ways of presenting baseball statistics. The 2003 season was my first full-season attempt, and it turned out pretty well. I now spend a lot of my time creating and formatting the baseball stats at The Hardball Times.

Along the way, I've also picked up the writing bug. I spend most of my energy writing for THT, but sometimes I like to write about more geeky stuff, baseball research and things like that. That's what this blog is for.

I'm very interested in graphics and other information display, so I'll probably post links to creative stuff like that. I also plan to write historical articles that complement the historical graphs. And I have inexplicably developed an interest in baseball win-related stats, such as Bill James's Win Shares and something called Win Probability Added. So you can expect a few posts about that stuff too.

If you're interested, I've created a complex spreadsheet full of WPA logic, which you can download at ftp.baseballgraphs.com/wpa. If you'd like to read more about Win Shares, try these links:

Win Shares Intro
What They're Good For
Mathematical Details
Archives
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April, 2008
March, 2008
January, 2008
January, 2007
December, 2006
November, 2006
October, 2006
September, 2006
August, 2006
July, 2006
June, 2006
May, 2006
April, 2006
March, 2006
February, 2006
January, 2006
October, 2005
September, 2005
July, 2005
May, 2005
April, 2005
March, 2005
February, 2005
January, 2005
December, 2004
November, 2004
October, 2004
September, 2004
August, 2004
July, 2004
June, 2004
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February, 2004
January, 2004
December, 2003
November, 2003
October, 2003


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If there is any aspect of WPA, Win Shares or baseball graphics you're interested in, drop me an e-mail and I'll look into it. Syndicate Baseball Graphs:

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Monday, October 27, 2003

An Analytic Framework for Win Shares

Over the winter, I hope to play “what if” scenarios with Pete’s 2003 Win Share spreadsheets.  In particular, I think it will be fun to tweak the Win Shares system to see if we can improve the output, or at least test the sensitivity of several variables.  I plan to explore questions we might have, such as: What if we added loss shares?  What if we changed the allocation between pitching and fielding?  Etc.?

First, though, we need to develop some standards for Win Shares validity.  We need a framework to guide our approach.  And I have an idea.

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