Baseball Musings
Baseball Musings
December 07, 2005
Splitting Hairs

Blogging's been a bit light lately as I've been working on a new feature for the Day by Day Database. What I've wanted for a while is an updated database that lets me calculate batting in various situations. I notice that Retrosheet.org posted event data for the years 2000-2004 on their site, so I thought this was a good time to give this program a shot.

As I worked on extracting the data, it occurred to me that it was possible to do a very cool splits program. Instead of just displaying splits by season, the user can input dates, looking at splits over any time frame. It was also possible to use the same selection criteria as the daily logs to drill down even further. So it's possible to look at splits for Bobby Abreu playing at home in Veterans Stadium.

Given the complicated nature of extracting splits for base runners, the database only contains batting events. The splits for pitchers are not pitching splits but opposition batting. Still, it's my belief that this is going to be a very useful research tool. I know of nothing like it on the web.

Baseball Info Solutions sold me the 2005 data and will provide updates in 2006. My thanks to Steve Moyer and Damon Lichtenwalner for their help on this project.

Find splits for batters here.

Find splits for pitchers here.

I've been testing the program, but my test have not been exhaustive. If you find something that looks wrong, or have suggestions for improvements, let me know.

Enjoy!


Posted by David Pinto at 10:16 PM | Statistics | TrackBack (0)
Comments

It looks like a great tool, David. I'm sure I'll find it very useful in the future.

The only thing I noticed was that it still says "SkyDome" instead of "Rogers Centre" for the Blue Jays. But this is a minor detail.

Posted by: Mike at December 7, 2005 11:37 PM

It would be cool if you could have default time ranges, like maybe a dropdown with 2005, 2004, 2003, etc. so a user has the option of just choosing the season of splits that they want to view instead of having to put in the dates for the season.

Very nice tool.

Posted by: sabernar at December 8, 2005 12:00 AM

David: Thank you so much for all the work you put into the Day-by-Day Database. It's one of the best tools online for us bloggers.

Posted by: Benjamin Kabak at December 8, 2005 01:36 AM

I feel like its Christmas already to be honest. I'm just sitting here going "Whoaaaaa" all Keanu Reeves like. Except intelligent. I think.

Great work David, this is excellent. Thanks!

Posted by: Marc Normandin at December 8, 2005 04:29 AM

Excellent Work!

I couldn't resist -- look at Arod's Leading/Trailing splits vs. Ortiz's Leading/Trailing splits. Made me chuckle.

Posted by: Dominic at December 8, 2005 11:13 AM

Dominic, you might want to check the "tied" splits too...

Posted by: john swinney at December 8, 2005 10:15 PM

In all seriousness, the Day by Day Database is my favorite toy on the internet. It's a huge help. Very nice job.

Posted by: Sam at December 9, 2005 12:00 PM
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