Ability to have the Run Expectancy automitcally generated

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maxber
Posts: 9
Joined: Wed May 28, 2014 12:45 pm

Ability to have the Run Expectancy automitcally generated

Post by maxber » Fri Sep 05, 2014 1:01 pm

For those of us who would like to do sabermetrics, it would be nice if you could generate the coefficients. I normally keep track of the following:
1B, 2B, 3B, BB, BT, CS, DI, DP, E, HBP, HR, K, OUT1, OUT2, OUT3, PB, RBOE, SACF, SACG, SB, THRWN (Throwing Error), WP

I think you could run a script after the game that calculated the coefficients as you have the States (who is on base), what event happened, and how many runs scored to the end of the inning. These could then be cumulated and we could have a screen that just put out the cumulative stat's for the season. Once I have those numbers, I can do my own stat's in excel.

You now calculate RC which uses those coefficients, but they are based on the major league baseball at 9 innings. You would also have to put in the ability to normalize these numbers to different inning's (softball = 7).
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FTMSupport
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Re: Ability to have the Run Expectancy automitcally generate

Post by FTMSupport » Fri Sep 05, 2014 2:06 pm

We will add your suggestions to our enhancement list, but anything that requires averages across a large sample to generate coefficients is not likely going to be possible. There are just too many other variables at play. It is not just number of innings, but you would also need to look at things like age group, level of play (rec vs club vs HS, etc) and any other number of factors for the values to have meaning.

Our Runs Created stat is based on the equations here:

http://en.wikipedia.org/wiki/Runs_created" onclick="window.open(this.href);return false;
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maxber
Posts: 9
Joined: Wed May 28, 2014 12:45 pm

Re: Ability to have the Run Expectancy automitcally generate

Post by maxber » Fri Sep 05, 2014 6:35 pm

The equation is the easy part. Doing the coefficients is the hard part.

You could do the coefficients and let the user filter by what leagues to use. It might take 10-15 minutes for your program to calculate a 70 game season. Once the coefficients were done, I could put them in excel and figure out my own RC or wOBA.

Thanks, I just need the coefficients, not the RC value.
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