15th March 2018
As you browse Baseball Reference, you might notice some subtle changes to WAR figures on the site. There are four main reasons for this:
- Park factors for recent seasons have been re-computed to be three-year rolling averages. For instance, 2016 Park Factors now encompass 2015-2017. This is something that needs to be done when seasons end.
- We've incorporated restated and expanded fielding statistics from Sports Info Solutions. SIS's Defensive Runs Saved forms the basis for our Defensive WAR calculations since 2003. From 2011 on they recalibrated data using their timer measures to measure ball hang time. There was also some recalculation based on changing shift methodology. Though we're now publishing their catcher framing stat (Strike Zone Runs Saved), we have not incorporated it into WAR at this time.
- Pitchers who received time as position players (whether PH or in the field) are now being treated as part-time pitchers and part-time position players. Previously we treated them as full-time pitchers. Some pitchers like Red Ruffing, Bob Lemon and Jim Kaat appeared in many games as a position player, pinch hitter or pinch runner. We used to credit these PAs as pitchers, which overvalued their offensive contributions. To handle this, we compute a percentage of time as a non-pitcher and make an adjustment.
- Also, we have incorporated a good deal more Retrosheet data which has affected the years we can compute more advanced fielding and baserunning measures. We're now able to roll these measures back to 1953. Another important change is that with Retrosheet gamelogs back to 1908, we can now use their IP data back to that year to get starter/relief IP splits. Some pitcher WAR changes for 1908-12 are due to WAR now being calculated using gamelog IP rather than the "official" total listed on the player's stat line. The biggest difference here was the appropriately named Bugs Raymond. The "official" record credits him with 324.1 IP that season, but the gamelogs come out to 304.1, which significantly impacted his WAR calculation (see below). For further reading on discrepancies between "official" records and more recently produced gamelogs, please read this excellent explainer by Retrosheet's Dave Smith.
For further details on WAR and its calculation, please see this WAR explainer.
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Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, Statgeekery, Uncategorized, WAR | No Comments »
28th February 2018
With March Madness right around the corner, we're very excited to announce the latest addition to the Play Index: The NCAA Tournament Player Game Finder! This tool allows users to make custom searches through every individual box score line in NCAA Tournament history, all the way back to the inaugural tournament in 1939. This tool is powered by the most robust, complete collection of NCAA Tournament box scores available online and allows for all sorts of searches for single-game leaders, single-tournament leaders and career tournament leaders.
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Posted in Announcement, CBB at Sports Reference, Data, Features, History, Play Index, Uncategorized | No Comments »
12th October 2017
Sports Reference LLC is searching for a data developer to join our current group of seven employees for work on our group of sites: Baseball-Reference.com, Basketball-Reference.com, Pro-Football-Reference.com, Hockey-Reference.com, and Sports-Reference College Football, College Basketball, and (someday) FBref.com.
If you are advertising the position, please use this url: https://www.sports-reference.com/data_dev.html
View the Job Ad: Data Developer Job at Sports Reference
Posted in Announcement, Baseball-Reference.com, Basketball-Reference.com, CBB at Sports Reference, CFB at Sports Reference, Hockey-Reference.com, Most Wanted, Pro-Football-Reference.com, Uncategorized | Comments Off on Data Developer Job at Sports Reference
24th August 2017
At Basketball-Reference, we have every box score in NBA history, including the playoffs. However, for many years, we don't have all statistical categories filled in in these box scores. We have recently taken a major step towards remedying this issue with our playoff box scores. We now have nearly complete box scores and series cumulative boxes for every NBA Finals series in NBA history.
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Posted in Announcement, Basketball-Reference.com, Data, Features, History, Playoffs, Uncategorized | Comments Off on Major Improvements to NBA Finals Box Scores
23rd August 2017
As you may know, our College Basketball site has every box score in NCAA Tournament history. However, many of these box scores were missing certain categories. For instance, blocks, steals and assists were not officially-tracked college basketball statistics until the mid-1980s. And in the tournament's earliest years, only scoring and shooting were officially recorded. Still, we were missing large swaths of available data on these games. However, thanks to the research of Sean Burrill, we have made huge improvements and now have nearly full coverage of all statistical categories for all NCAA Tournament games since the field expanded to 64 teams in 1985.
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Posted in Announcement, CBB at Sports Reference, Data, History, Uncategorized | 3 Comments »
1st August 2017
We have added a few new search options to the Basketball Reference Player Season Finder
These additions can be found in the "Search Award/Honor" dropdown on the search form. Previously, you could run searches for major award winners and All-NBA or All-Rookie players. We've now added the ability to search for All-Defensive Players. Additionally, rather than searching for just First or Second team players separately, you can can now search for both First and Second team in the same search. Here are a few examples of new searches you can run:
---Worst Defensive BPM by a First-Team All Defense Player
---Fewest Win Shares by an All-Rookie player (1st or 2nd team)
---Youngest players to make an All-NBA team
We hope you enjoy these additions. Please let us know if you have any questions
Posted in Announcement, Awards, Basketball-Reference.com, Data, Features, History, Play Index, Uncategorized | 1 Comment »
9th March 2017
I want to give a short update as to where the new redesign stands. We have fixed we believe all of the bugs (that didn't already exist) in the play index. There are a few open issues in the register section. We have incorporated many of the suggested changes to the site from users who were experiencing issues.
- The register has a few open bugs
- The in memoriam is not yet showing our non-players
- There are a few bullpen style and administrative issues.
- There appear some issues relating to Internet Explorer hanging in a way we can't reproduce.
- We are working on publishing the 2017 spring training stats, the projections, and the foreign leagues already underway.
We are working through all of these and expect to be 100% ready to go on Opening Day.
Posted in Uncategorized | 26 Comments »
23rd December 2016
Updated on December 24, 2017
Below, you will find the top individual performances in NBA Christmas day games entering 2017:
Most Points in an NBA Christmas Game
Most Rebounds in an NBA Christmas Game
Most Assists in an NBA Christmas Game
Most Steals in an NBA Christmas Game
Most Blocked Shots in an NBA Christmas Game*
Posted in Announcement, Basketball-Reference.com, Data, History, Leaders, Uncategorized | Comments Off on NBA Christmas Records
31st October 2016
You may have noticed that we recently expanded much of our player game logs coverage back to 1950. Previously, this data only went back to 1960 on our site. Below is a complete breakdown of the added material:
- Passing statistics (pass attempts, completions, yards, pass touchdowns and interceptions) are complete for all players from 1950-59
- Rushing/Receiving statistics (rush attempts, rush yards, rush TD, receptions, receiving yards, receiving TD) are 95% complete from 1953-59. 25 games over these seven seasons are missing some data (though all HOFers and All-Pros are complete). From 1950-52, this data is 100% complete for HOFers/All-Pros and for the Packers, 49ers, Lions, Rams and Browns. The Bears, Giants, Eagles, Steelers, Redskins and Cardinals are 90% complete. The Colts, Yanks and Texans are 75% complete.
That fine print is not particularly exciting to read, so below I'll highlight just some of the cool data this now adds to our site:
In addition to the play index searches, you can also view the fleshed out box scores of the games of from the 1950s.
We hope you enjoy this addition. Please let us know if you have any questions or comments.
Posted in Announcement, Data, History, Play Index, Pro-Football-Reference.com, Uncategorized | 1 Comment »
24th May 2016
Unless you're a fan of a conference finalist, chances are you're beginning to look ahead to the offseason and what players your team can add via free agency in July and beyond. So go ahead and click this link for our 2016 NBA Free Agent Tracker and check out who might be available this offseason. The players are automatically sorted by their 2015-16 Win Shares totals, from Kevin Durant's 14.5 to Tony Wroten's -0.8.
Posted in Announcement, Basketball-Reference.com, Data, Uncategorized | Comments Off on 2016 NBA Free Agent Tracker