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Archive for the 'Statgeekery' Category

Get to Know Mike Daum & Chris Clemons: CBB’s Next 3,000-Pt Scorers

4th November 2018

They've been playing college basketball for well over 100 years. And yet only eight men in the history of major men's college basketball have managed to score 3,000 career points: Pete Maravich, Freeman Williams, Lionel Simmons, Alphonso Ford, Doug McDermott, Harry Kelly, Keydren Clark and Hersey Hawkins. Notably, none of these players joined the 3,000-pt club in the same season.

In the 2018-19 season, we could see membership in this club jump from eight to 10 as Campbell's Chris Clemons and South Dakota State's Mike Daum seem poised to become the first pair of players in NCAA history to join the 3,000-point club in the same season. Clemons, a 5'9" high-flyer, and Daum, a 6'9" double-double machine, have few things in common in style of play, but they each enter their senior seasons with identical career totals of 2,232 points. Every NCAA D-I men's basketball player that has entered their senior year with 2,200+ points has gone on to reach 3,000 that season. Read the rest of this entry

Posted in Announcement, CBB at Sports Reference, Data, History, Statgeekery, Uncategorized | No Comments »

Ejection Totals and In-Game Tendencies Added to Manager Pages

24th October 2018

For manager pages on Baseball-Reference, we have added a column for ejections to their primary Managerial Stats table. Bobby Cox's career 162 ejections make for a nice finishing piece on his collection of accolades. We have ejections data for managers all the way back to the 1889 season, so even classics like John McGraw are fully accounted for. We'll also take the opportunity to mention that if you want to dig into what the cause for these ejections were, Retrosheet's Managers section will have that for you.

We have also added a new Managerial Tendencies table to managers' pages, showing how often their teams employed certain strategies and how their rate compared to the league they were managing in. We show a manager's tendencies in stolen base attempts at 2nd and 3rd, as well as how often their teams attempted sacrifice bunts, issued intentional walks, or made player substitutions.

Using one recent example, in Dusty Baker's final year with the Washington Nationals, his players attempted to steal 3rd base on 2.9% of the chances they had. Using 100 as the league average, Baker in 2017 had a league-adjusted rate of 180, meaning that Baker's team was attempting this almost twice as much as the average NL squad that season.

We have intentional walk tendencies back to 1955, while the other managerial tendencies are available since 1925. If you have any questions about this new feature or any other section of Baseball-Reference, feel free to contact us through our feedback form.

Posted in Announcement, Baseball-Reference.com, Data, Features, History, Statgeekery, Trivia | 2 Comments »

Introducing the WNBA Player Season Finder

10th August 2018

Regular Basketball-Reference users are well acquainted with the Play Index, which allows us to compare players across eras and slice and dice season-level data by many criteria. Today we are now introducing the WNBA Player Season Finder, which will be accessible from both the Play Index page and from our WNBA home page. We have WNBA stats back to the league's inaugural 1997 season, which means you can now search all of WNBA history with this tool.

Just like our NBA Player Season Finder, with the new WNBA tool you can do single-season, combined season and total season searches. For example, with the combined season search, you can now create franchise career leaderboards, maybe to see how far ahead in first place Tamika Catchings is among point scorers in Indiana Fever history. Or with the total seasons search, you can now execute a search like players with the most qualified seasons of 2 blocks per game; Margo Dydek and Lisa Leslie lead with nine seasons each finishing with that mark in their career.

Of course, current season stats are also searchable with the Player Season Finder, so you can give them some perspective with past stats. A'ja Wilson is burning up the league in her first WNBA season, currently averaging over 20 points per game. Here's a look at the others in WNBA history who finished with 20 points per game in their rookie season.

Query Results Table
Tota Tota Per Per Per Per Per Per Per Per Per Shoo Shoo Shoo Shoo Shoo
Rk Player Season Tm Lg PTS G GS MP FG FGA 2P 2PA 3P 3PA FT FTA FG% FT% 2P% 3P% eFG%
1 Cynthia Cooper 1997 HOU WNBA 22.2 28 28 35.1 6.8 14.5 4.4 8.7 2.4 5.8 6.1 7.1 .470 .864 .508 .414 .553
2 Seimone Augustus 2006 MIN WNBA 21.9 34 34 33.1 8.3 18.2 7.4 15.7 0.9 2.5 4.4 4.9 .456 .897 .473 .353 .481
3 A'ja Wilson 2018 LVA WNBA 20.3 29 29 30.8 7.1 16.0 7.1 16.0 0.0 0.0 6.0 7.7 .446 .785 .446 .446
Provided by Basketball-Reference.com: View Original Table
Generated 8/10/2018.

Stay tuned for more additions to the WNBA section of our site here on the Sports-Reference Blog. If you have any questions or suggestions, feel free to contact us through our feedback form.

Posted in Advanced Stats, Announcement, Basketball-Reference.com, Features, History, Leaders, Play Index, Stat Questions, Statgeekery | 4 Comments »

Web Developer Job at Sports Reference | Sports-Reference.com

5th June 2018

We are Hiring! Please see our job ad. Web Developer Job at Sports Reference | Sports-Reference.com

Posted in Announcement, Baseball-Reference.com, Basketball-Reference.com, Bleg, CBB at Sports Reference, CFB at Sports Reference, expire21d, FBref, Features, General, Hockey-Reference.com, Statgeekery | 1 Comment »

Save Percentage and Goalie Minutes Coverage Extended

24th April 2018

Hockey-Reference has now added goaltenders' Shots Against data back to the 1955-56 season; we previously only had that back to 1983-84. This addition enables us to calculate season and career save percentages for all goaltenders, including several Hall of Famers. For example, a contender for greatest goalie of all time, Jacques Plante, is now listed with a career .9196 SV%, putting him at eighth all time and fifth among retired players. Plante also now occupies two of the top five spots in the single-season Save Percentage leaderboard. Johnny Bower is the top addition to the career Save Percentage leaderboard, as his career .9219 SV% puts him at third all time and second among retired players, only trailing Dominik Hasek.

We also now have data available that gives us precise Time On Ice numbers for goalies down to the second, going all the way back to the beginning of the NHL. As a result, there have been some changes to the Minutes Played data, and subsequent re-calculations of everyone's Goals Against Average. This pertains, mainly, to goalies prior to 1999. We always had Time On Ice data for goalies from 1999 onward.

We pride ourselves on providing the most accurate information available and we hope fans of NHL history enjoy this addition. Please let us know if you have any questions or comments.

Posted in Announcement, Data, History, Hockey-Reference.com, Leaders, Statgeekery | 2 Comments »

2018 WAR Update

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.

Read the rest of this entry

Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, Statgeekery, Uncategorized, WAR | 8 Comments »

Pitch Framing Measures Added to Baseball Reference

8th March 2018

Our friends at Sports Info Solutions (formerly known as Baseball Info Solutions) have provided us with a pitch framing measure back to 2011, which we have added to Baseball Reference. Before I explain any further, if you're unfamiliar with the concept of pitch framing please read Mike Fast's 2011 article on the topic and Ben Lindbergh's 2013 follow up.

The stat that we have added is called Strike Zone Runs Saved. It represents the runs saved by catcher framing. In our tables, it's labeled RszC and it's available from 2011 to the present. While this statistic is a potential component of Defensive Runs Saved (and therefore WAR), please note that we have elected to not integrate this number into DRS (or WAR) at this time. We may elect to do so in the future, but for now we agree with Bill James's stance that waiting for further research is a good idea.

Read the rest of this entry

Posted in Advanced Stats, Announcement, Baseball-Reference.com, Data, Features, Statgeekery, WAR | 3 Comments »

Alex Bonilla Joins Sports Reference

7th March 2018

I'm pleased to welcome Alex Bonilla to Sports Reference as a User Affairs Coordinator. He'll be answering user questions, working on our new Stathead.com newsletter and much more. He's on twitter at @AlexChacon_OVA. This hire brings us to ten full-time employees.

In other news, Mike Lynch has been promoted from Users Affairs Coordinator and is now Product Manager for Sports Reference.

Posted in Announcement, Baseball-Reference.com, Basketball-Reference.com, CBB at Sports Reference, CFB at Sports Reference, expire21d, Hockey-Reference.com, Pro-Football-Reference.com, Statgeekery | Comments Off on Alex Bonilla Joins Sports Reference

LeBron James Passes Michael Jordan on All-Time Win Shares List

13th February 2018

Two years ago, LeBron James passed Michael Jordan to become the NBA's all-time leader in Value Over Replacement Player (which is calculated back to 1973-74). Now, LeBron has passed Jordan on the NBA's All-Time Win Shares list. Both players still trail Kareem Abdul-Jabbar, Wilt Chamberlain and Karl Malone, however.

For more nuanced perspective on how these five players stack up, please visit this detailed comparison from our Player Comparison Finder tool.

Posted in Announcement, Basketball-Reference.com, Data, Features, History, Play Index, Statgeekery | Comments Off on LeBron James Passes Michael Jordan on All-Time Win Shares List

Era-Adjusted Stats Added to Hockey Reference Player Season Finder

15th January 2018

At Hockey Reference, we calculate adjusted stats in order to more accurately compare players from different eras and different goal scoring environments. With Alex Ovechkin approaching his 600th career goal, there has been some chatter about Ovi being the greatest goal scorer in NHL history.

So we thought this made for a good time to introduce the adjusted scoring statistics into the Player Season Finder tool in order to test this hypothesis. As it turns out, Ovechkin is easily the NHL leader in "adjusted goals" through 13 seasons of play. If you click on the link, you'll see he has 691 adjusted goals (through 1/15/18), while Wayne Gretzky had 607 adjusted goals through 13 seasons.

Read the rest of this entry

Posted in Advanced Stats, Announcement, Data, Features, History, Hockey-Reference.com, Play Index, Statgeekery | Comments Off on Era-Adjusted Stats Added to Hockey Reference Player Season Finder