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Job: User Affairs Coordinator @ Sports Reference

Posted by sean on January 6, 2014

User Affairs Coordinator @ Sports Reference.

Yes, we'll pay you money to spend all day answering questions about sports. Please pass along this job ad to anyone you might think would be interested.

5 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Basketball-Reference.com, CBB at Sports Reference, CFB at Sports Reference, Expire30d, Hockey-Reference.com, Olympics at S-R, Pro-Football-Reference.com, Statgeekery, Tips and Tricks, WAR

Everything You Wanted to Know About Wins Above Replacement (WAR)

Posted by Neil on June 5, 2013

With Wins Above Replacement (WAR) gaining more prominence since last season, it's a good time to remind everyone about our WAR 2.2 guide:

  • Baseball-Reference.com WAR Explained - This explains the basics of WAR, the philosophy behind the stat, and some of the changes we made to the formula the past few years.
  • Weighted Runs Above Average (wRAA) Explained - This describes how wRAA, the core hitting stat of WAR, is computed.
  • Position Player WAR Calculations and Details - This explains how we turn wRAA, Baserunning & Double-Play Runs, Fielding Runs, Positional Adjustment Runs, and Replacement level Runs into WAR for position-players.
  • Pitcher WAR Calculations and Details - This explains how we take a pitcher's runs allowed & innings pitched, and turn it into WAR.
  • Converting Runs to Wins - This further describes the process by which Runs Above Replacement (for both pitchers and position players) are converted into Wins Above Replacement.
  • WAR Comparison Chart - This chart shows the differences between the WAR found here at Baseball-Reference and those from a variety of other sources, including FanGraphs & Baseball Prospectus.
  • WAR Data Downloads - If you want to download the raw WAR data yourself and play around with it, you can also get the Batting and Pitching data from our site.

Many of the questions we typically get about WAR can be answered by reading the guide linked above.

8 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, FAQ, Features, Stat Questions, Tips and Tricks, WAR

My Answer to “I Don’t Like How Complicated WAR Is and How It Is Constantly Changing.” “WAR is Like GDP for Baseball”

Posted by admin on March 29, 2013

Some of the common critiques of the Wins Above Replacement framework include: 1) Why do FanGraphs and Baseball-Reference.com have such different numbers, 2) How can we trust it when the numbers change, and 3) How can we trust it when I can't calculate it?

For the first question, our announcement today of a consistent replacement level between FanGraphs and Baseball-Reference.com has done a considerable amount to bring our two methodologies into alignment at least on the question of how big of a basket of WAR to hand out to players each year. Previously, FanGraphs allotted nearly 300 additional WAR due to a much lower replacement level. Our meeting in the middle has erased this difference to zero.

For the next two questions, I would point to a very widely quoted and very widely used statistic from economics, Gross Domestic Product (GDP). Here is the Wikipedia article on Gross Domestic Product. I'm going to argue that WAR is essentially GDP for baseball.

41 Comments | Posted in Announcement, Baseball-Reference.com, General, Stat Questions, WAR

Everything You Wanted to Know About Wins Above Replacement (WAR)

Posted by Neil on October 10, 2012

With all of the controversy over the role of Wins Above Replacement (WAR) in the A.L. MVP debate, now might be a good time to remind everyone about our WAR 2.1 guide:

  • Baseball-Reference.com WAR Explained - This explains the basics of WAR, the philosophy behind the stat, and some of the changes we made to the formula this past spring.
  • Weighted Runs Above Average (wRAA) Explained - This describes how wRAA, the core hitting stat of WAR, is computed.
  • Position Player WAR Calculations and Details - This explains how we turn wRAA, Baserunning & Double-Play Runs, Fielding Runs, Positional Adjustment Runs, and Replacement level Runs into WAR for position-players.
  • Pitcher WAR Calculations and Details - This explains how we take a pitcher's runs allowed & innings pitched, and turn it into WAR.
  • Converting Runs to Wins - This further describes the process by which Runs Above Replacement (for both pitchers and position players) are converted into Wins Above Replacement.
  • WAR Comparison Chart - This chart shows the differences between the WAR found here at Baseball-Reference and those from a variety of other sources, including FanGraphs & Baseball Prospectus.
  • WAR Data Downloads - If you want to download the raw WAR data yourself and play around with it, you can also get the Batting and Pitching data from our site.

Many of the questions we typically get about WAR can be answered by reading the guide linked above.

36 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Features, WAR

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