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THE BOOK--Playing The Percentages In Baseball

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Thursday, February 18, 2010

Using wOBA

By Tangotiger, 03:49 PM

Here’s a good piece on being introduced to wOBA and how to use it.  If he’s using the Fangraphs data, it includes SB and CS, so that should be added in there.  The coefficients are around .25 and -.50.

I liked his closing line:

...and the countless other blogs and books that refuse to stop thinking and arguing about baseball.

Great line.


#1          (see all posts) 2010/02/18 (Thu) @ 16:35

This is great! Actually, one question, why does HBP have a slightly higher coefficient vs. BB?


#2    Tangotiger      (see all posts) 2010/02/18 (Thu) @ 16:55

Walks occur more often when they have less value (1B open, or with 2 outs).


#3    JT      (see all posts) 2010/02/18 (Thu) @ 18:02

Shouldn’t it be NIBB rather than BB?  It seems like the coefficient would be slightly higher if we’re using total BB.


#4    Tangotiger      (see all posts) 2010/02/18 (Thu) @ 18:06

It is NIBB. 

For some people, they prefer to write BB and then declare IBB are removed.

You could just as well call them BB, IBB, and TBB (total walks).


#5    JT      (see all posts) 2010/02/18 (Thu) @ 19:04

Ah, okay.  It seems like removing IBB from the denominator would have to be done as well.


#6    Tangotiger      (see all posts) 2010/02/18 (Thu) @ 20:59

Yes, definitely.  The IBB should be treated as a no-play.


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