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In response to "You, personally, can't since it's a proprietary formula. -- nm" by Reagen

from baseball-reference dot com - "There is no one way to determine WAR"

Posted by crash davis (aka crash davis) Apr 3 '17, 11:12

"There is no one way to determine WAR. There are hundreds of steps to make this calculation, and dozens of places where reasonable people can disagree on the best way to implement a particular part of the framework. We have taken the utmost care and study at each step in the process, and believe all of our choices are well reasoned and defensible. But WAR is necessarily an approximation and will never be as precise or accurate as one would like."

Someone may have a proprietary formula, but there appears to be more than that one. Baseball-reference has several pages devoted to how they calculate theirs

Responses:

The fact it can't be calculated easily and consistently is it's biggest drawback. -- nm - Will Hunting Apr 3, 11:13 5
- I don't want to do my own calculations. I just want to know when someone says X is two wins better than Y, that I have an idea where that came from -- nm - crash davis Apr 3, 11:17 4
  - I'm not worried about doing it myself (now), but if one guy is worth 4.8 WAR and 5.7 WAR on two scales, that's an issue. -- nm - Will Hunting Apr 3, 11:18 3
    - It makes the NFL's QBR vs ESPN's QBR seem quaint -- nm - crash davis Apr 3, 11:20 2
      - The NFL Rating is easy and makes sense. The ESPN version is a joke that can't be replicated. - Will Hunting Apr 3, 11:22 1
        
        Hear to the hear. -- nm - Baronspringa Apr 3, 11:58

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from baseball-reference dot com - "There is no one way to determine WAR"

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