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

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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.

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WPA Posts

May 12, 2005

Here are a couple of very good WPA bullpen posts:

Thomas has a tremendous, detailed review of the Blue Jays’ April that might serve as a template for future reports.
Completely independent of anything we’ve done here, John has developed a great site that tracks the Atlanta Braves’ bullpen WPA. This is another great example of how WPA could potentially be used on an ongoing basis.

As a reminder, Baseball Prospectus also posts their own WPA bullpen results, which they call Win Expectancy Added.

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