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Errata: Minor Stats Corrections Coming to the Site

Posted by admin on July 15, 2013

By the nature of our update process these will take a week or two to roll out to the site, but they'll get there eventually. This note below is from one of our data producers and represent a set of updates we'll be incorporating into the site.

One of the great aspects of the baseball research community is their dogged determination to get things right even it is a mixup between Tom Maher and Frank Mahar in 1902.

1 Comment | Posted in Advanced Stats, Announcement, Baseball-Reference.com, expire40d, Statgeekery, Trivia

Approximate Value Added for Kickers and Punters

Posted by Neil on June 14, 2013

Today, we added a new feature to our popular Approximate Value metric on the site -- AV totals for kickers and punters. (Don't worry, we've warned Doug Drinen, and he hasn't suffered any adverse health side-effects that we know of.)

The methodology is described in tortuous detail on the AV formula page, but we basically looked at salary data to calibrate kicker and punter AV against our existing AV data, and used some simple metrics (kicking points added above average using distance data; punting gross yards per attempt w/ an adjustment for blocks) to measure kicking/punting performance. The best career AVs in each category are as follows:

We're still working out some AV kinks (particularly in terms of All-Pro bonuses) with certain players who played both kicker/punter and another position -- think Lou Groza -- but for the most part we're happy with the results, and we thought it was time special-teamers got their AV due.

5 Comments | Posted in Advanced Stats, Announcement, Features, History, Pro-Football-Reference.com, Statgeekery

Search Our Stats Using the Play Index

Posted by Neil on June 10, 2013

It's the Finals, so that means it's time for a reminder 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.

Comments Off | Posted in Advanced Stats, Announcement, Basketball-Reference.com, CBB at Sports Reference, Features, History, Play Index

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

Play Index Free Trial Through April 15

Posted by admin on March 11, 2013

Get ready for the baseball season with a free trial for the Baseball-Reference.com Play Index.

Visit the Play Index Subscription Page to create an account (if needed) and use the coupon code "Analytics" to get your free trial.

Only 20 days to opening day. Happy Baseball!

4 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, expire40d, Play Index, Uncategorized

2013 Spring Training Stats W/ Quality of Opposition Measure

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

Outs on Bases by Base

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.

Comments Off | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Uncategorized

Player Fielding Gamelogs

Posted by admin on January 24, 2013

Bill Mazeroski Statistics and History - Baseball-Reference.com.

It's been a long-time coming, but I added player fielding gamelogs yesterday. Nothing too fancy, but basic fielding stats game-by-game for each player since 1916. Here is Mazeroski's 1960 game log and Cobb for 1916. We have the overall gamelog (irrespective of position) followed by position specific logs.

You can get to the gamelogs by clicking the gamelog selection over the top of the standard fielding stats on the player pages. See the screen shot below.

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

Play Index Inning Scoring & Lead Change Tool

Posted by admin on January 17, 2013

2012 Team Scoring and Leads Summary - Baseball-Reference.com

This tool has been around for awhile, but I just updated the look to use tables rather than pre-formatted text (I think there is only one tool left that is pre-formatted) which adds the embed, share and sorting tools into the mix.

4 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com

Event Finders Now with Batted Ball Type

Posted by admin on January 17, 2013

Event Finders with Batted Ball Types

Did you know that the Pirates gave up the most ground ball bunt singles last year (30) and the Rangers and Brewers the fewest (10)? Or that Matt Cain gave up 10 all by himself.

You can now find information like that on the Play Index Event Finders as we've added the type of batted ball in our DB to the event finder outputs.

All 579 bunt ground ball singles in the MLB last year

Comments Off | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Play Index

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