3 replies to this topic

[absintheofmalaise]

The use of WAR as a stat to talk about player value is on the rise here. Because of this, we ask that posters who do use WAR to also let people know which version of WAR they are using. Baseball Reference and Fangraphs calculate WAR differently. Since WAR is a combination stat, it would also help tremendously if you’d break down both the offensive component and the defensive component whenever you post using WAR.

Fangraphs uses Park Adjusted Runs Above Average based on wOBA to calculate the offensive component and UZR to calculate the defensive component. You can learn more about it here and here.

Baseball Reference uses the Sean Smith’s WAR data. You can learn more about how it is calculated here and more about Sean Smith here.

Thanks

[absintheofmalaise]

One other thing about using WAR, since it's a combo stat like OPS, could you also break it down into its individual components like you would with BA/OBP/Slg/OPS. Using fWAR as an example. They use Batting/Base Running/Fielding/Replacement/Positional = RAR = WAR .
Pedroia's line today looks like this: 28.6/-0.8/17.4/22.5/2.2 = 69.9 = 7.4

[santadevil]

Just noticed this article by Jim Caple on ESPN.com, discussing WAR a little bit and how fangraphs and bbref calculate those values differently and why it may be confusing to fans.

[JohnnyK]

Just noticed this article by Jim Caple on ESPN.com, discussing WAR a little bit and how fangraphs and bbref calculate those values differently and why it may be confusing to fans.

And this now led to B-R and Fangraphs to unify their replacement level baselines. This also means that historical WAR figures have changed, and career WAR for many players have changed significantly.