Archive for the 'Advanced Stats' Category
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.
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Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, FAQ, Features, Stat Questions, Tips and Tricks, WAR
Posted by admin on February 26, 2013
We've never included Spring Training stats on the site before, but decided to add our own take this year, so we now have spring training stats on the player and team pages and on a league register page, so you can see every player in camp on one page.
One hard thing about spring training is that you've got a very wide variety of players in camp. Veteran major leaguers, AAA, AA, and even low-A ball players. A player hitting .400/.500/.600 against A-ball competition is a lot different than one who does that against MLBers (though truth be told the sample sizes are so small as to not tell us much definitively). To give you a feel for the level of competition we've provided an OppQual column that is 1-10. Each opponent for each PA for that batter or pitcher is graded between 1 and 10 based on the level or average level (weighted by IP or PA) they played at last year.
- 10 - MLB
- 8 - AAA
- 7 - AA
- 5 - High A (Cali or Carolina)
- 4 - Full-Season A (Midwest and SALLY)
- 1.5 to 3 - Rookie or Short-season
- 1 - for pitchers if the opposing batter is a pitcher
So a player over 9 is facing mostly MLB guys while someone under 9 is facing mostly minor leaguers. Players like John Lackey in 2012 or Yu Darvish in 2011 who did not play in an MLB affiliated league are simply excluded from the rating.
Player Pages - Spring Training Stats appear at the top of major and minor league player pages.
Team Stats: 2013 Atlanta Braves Spring Training, these are all linked from the site front page.
League-wide Stats: Batting Register and Pitching Register. These tables are sortable, so you can look up current leaders if you like.
10 Comments |
Posted in Advanced Stats, Announcement, Baseball-Reference.com
Posted by admin on January 25, 2013
2012 Major League Baseball Baserunning/Misc.
To the baserunning pages for teams, players, leagues (currently rebuilding non-league pages), I've added columns for OOB1, OOB2, OOB3, OOBHm or rather outs on base at 1st, 2nd, 3rd, and Home.
See the screenshot below for the location of this data. It's available in the league nav bar which is on any of league yearly pages just below the top ad.
Read the rest of this entry »
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Posted in Advanced Stats, Announcement, Baseball-Reference.com, Uncategorized
Posted by admin on December 18, 2012
Thanks to the great folks at RetroSheet we are now able to launch box scores and game logs for 1916 and 1917 and additional play-by-play for 1945-1947 along with additional games found here and there for 1948-1973.
For a full list of our data coverage, check out our Data Coverage page.
I have yet to re-run the full site, so the 1916 A's and 1917 retirees will not yet have links to splits or gamelogs, but that should happen later today or tomorrow.
Box Score Directory (1916-2012)
Note: RetroSheet also has 1915 AL and NL box scores, but not yet Federal League boxes. Given our setup we require a full set to be available before we can publish a year's worth of box scores.
3 Comments |
Posted in Advanced Stats, Announcement, Baseball-Reference.com, expire120d, History
Posted by Neil on November 30, 2012
With the 2012-13 regular season in full swing, you might want to check out the Basketball-Reference Play Index. In case you don't already know about the PI, it's a set of research tools that allow you to create customizable queries on our database, save the results, and share them with others. With the PI, you can:
- Use the Player Season Finder to search through all NBA, ABA, & BAA players' regular season and playoff statistics for performances that match your criteria.
- Use the Player Game Finder to search through NBA players' regular season and playoff game logs (since 1985-86) for games matching your criteria.
- Use the Head-to-Head Finder to search for games in which two selected players played against each other.
- Search for player and team consecutive-game streaks that match your criteria using the Streak Finders.
- Search for team performances that meet your criteria with the Team Season Finder and Team Game Finder.
- Use the Draft Finder to search through every NBA/BAA draft for picks that match your criteria.
- Use the Player Comparison Finder to compare the stats of up to four players through (or in) a given season.
Also, take a look at the Play Index Plus for even more data-searching goodness. The PI+ lets you sift through the play-by-play data of every game since 2001, making it possible to look for specific events, lineup data, and shooting stats (including clutch shots and shot breakdowns by distance).
Best of all, these features are 100% free to use! So go ahead, give them a try, and you'll wonder how you ever got along without them.
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Posted in Advanced Stats, Announcement, Basketball-Reference.com, Play Index