You Are Here > Sports-Reference.com > Blog

Blog Archives: MLB · NFL · NBA · NHL · CFB · CBB · Olympics

Archive for the 'Announcement' Category

Player Season Finder Improvements, Including BPM & VORP

Posted by David Corby on November 13, 2014

Just a note that we've expanded the searchable options in our Player Season Finder this week.

In particular, we've added BPM and VORP to the list of searchable stats, both of which are available going back to the 1973-74 season.  If you don't know what those stats are, you may have missed this recent announcement. Also feel free to weigh in at the discussion on the APBRmetrics forum.

Also, we've added search options by a player's birth state, college, and debut seasons, either in the NBA or ABA. There's also a new option to search by award winners so you can see all seasons by MVP winners, All-NBA selections, Defensive Players of the Year, etc.

If you're new to the site, the Player Season Finder is our most popular database search tool. You can get to it by clicking on 'play-index' in the top navigation menu, then the large 'Player Season Finder' link. It allows you to search for and compare player stats for a season or a player's career (or a span of years). You can also find the number of seasons that match your criteria. As an example, you can find the highest USG% seasons of all timemost career VORP for a player from Duke, or the most points scored in a single postseason.

The new fields are highlighted in red below:

 

psl_new

2 Comments | Posted in Advanced Stats, Announcement, Basketball-Reference.com, CBB at Sports Reference

Offseason Updates

Posted by Mike Lynch on November 12, 2014

We just wanted to share a few recent site updates as we head into baseball's offseason:

We have updated things like rookie status, service time and contract status for 2015. Here's the updated data for Joe Panik, for instance:

Screen Shot 2014-11-12 at 3.07.57 PM

As you can see, we've pointed out that his rookie status has now been exhausted and updated the other items, as well.

Additionally, our free agency page is now live and contains the signings thus far, as well as a list of remaining available free agents. This information can be found here. You can also follow free agent signings via our transactions page.

And finally, any new signings will be reflected on team payroll pages, which can be found as a tab on main team pages:

Screen Shot 2014-11-12 at 3.22.49 PM

Comments Off | Posted in Announcement, Baseball-Reference.com, Data

Touches Added to Play Index

Posted by Mike Lynch on November 5, 2014

You often hear about dangerous workloads for NFL running backs and the struggles many have had after particularly taxing seasons. But, particularly in this era, the running game is only part of the equation for backs (though we won't opine on whether or not receptions are less taxing than rushes). Many of them are 3-down players heavily involved in the passing game. With that in mind, we've added "touches" as a searchable statistical category in the Play Index. For our purposes, we have defined "touches" as the sum of rushes, receptions, kick returns & punt returns. While Larry Johnson may famously hold the record for rush attempts in a season with 416, James Wilder has the record for touches with 492 in 1984. The most touches in a game we have in our data (since 1960) is 48 by LaDainian Tomlinson & Wilder.

As I write, the 2014 leader in touches is DeMarco Murray, with 255 through 9 games. That puts him on pace for 453 touches this season, which would be tied with Eddie George for 3rd most in NFL history and 14 more than Emmitt Smith ever had in a season.

Comments Off | Posted in Announcement, Data, Play Index, Pro-Football-Reference.com

Combined Points Added to Team Game Finder

Posted by Mike Lynch on November 4, 2014

Thanks to a recommendation from user Jon P, we have added "combined points" as a search and filter option in the Team Game Finder.

You can now search for games in which the 2 teams combined for 100+ points or the highest scoring games since the merger. Or, if you can stomach it, you can even find games with twice as many turnovers as points.

5 Comments | Posted in Announcement, Play Index, Pro-Football-Reference.com

Introducing Box Plus/Minus (BPM)

Posted by David Corby on October 29, 2014

We're excited to introduce our newest statistical feature, Box Plus/Minus (BPM), developed and shared by Daniel Myers, well known as an administrator of the APBRmetrics forum and the developer of Advanced Statistical Plus/Minus (ASPM), which has performed very well empirically and to which BPM now serves as successor.

BPM is an advanced stat intended to measure a player's total contribution, calculated using box-score data that's available going back to the 1973-74 season. It follows on work done toward the Statistical Plus/Minus (SPM) concept, and ASPM, and uses long-term data sets developed by Jeremias Engelmann, the creator of ESPN's Real Plus/Minus statistic. Please visit Daniel's write-up to read more about the development of BPM, the background of the concept, and everyone that's contributed to the research.

BPM is presented intuitively, representing points per 100 possessions for which the player was on the court. For example, a player with a +4.3 BPM is said to have contributed 4.3 more points than an average player over 100 possessions, based on measurable statistical output from game box scores. The calculation makes heavy use of context dependent box score stats like USG%, TS%, STL% and others (as well as the statistical interactions between these components). We publish these as Advanced Box Score Stats and you can read about these component calculations in our glossary. Note that there is a separate calculation for the offensive component of a player's BPM, which yields both OBPM (Offensive Box Plus/Minus) and DBPM (Defensive Box Plus/Minus).

Further, BPM is scaled so that -2.0 represents a theoretical "replacement level" - thus, this concept is easily extended to permit calculations of one player's value over that theoretical threshold - that formula is [BPM - (-2.0)] * (% of minutes played), which is VORP, and interpreted as per 100 team possessions.

We'll be presenting BPM, it's offensive and defensive components, as well as VORP in the 'Advanced' table of our player pages, and likewise in our team pages:

 

james_harden2

 

For 2014, the leaderboards for BPM, OBPM, and DBPM, respectively, look like the following (> 1,000 MP):

bpm1 opm1 dpm1

And as the season gets underway, you'll be able to find BPM and its components, as well as VORP, on our actual leaderboard as well as other site features like the Play Index tools and season registers.

 

3 Comments | Posted in Announcement, Basketball-Reference.com, CBB at Sports Reference

Incompletions Added to Player Game/Season Finders

Posted by Mike Lynch on October 28, 2014

Thanks to a suggestion from user @AdamHarstad, we have added incompletions to the player season and game finders.

With this addition, you can search for things such as most incompletions in a season, game or career.

With Halloween right around the corner, we'll also point out that you can now query monstrosities such as THIS, as well.

If you clicked, we're very sorry you had to see that. Please use this tool responsibly!

2 Comments | Posted in Announcement, Data, Play Index, Pro-Football-Reference.com

Stat Comparisons Added to Player Game Finder

Posted by Mike Lynch on October 27, 2014

As you may have noticed, we recently added the ability to compare different stat categories in our Team Game Finder. We're happy to announce that we've now brought the same function to our Player Game Finder.

So you can now search for things like:

Obviously, there's plenty of other queries you can run with this. We encourage you to play around with it and we hope you enjoy it!

Just as a reminder, if you do not want to answer survey questions on the Play Index, we offer ad-free subscriptions good on all Sports Reference sites for a little over a nickel per day ($20/year).

4 Comments | Posted in Announcement, Data, Features, Play Index, Pro-Football-Reference.com

New Hall of Fame Prediction Model

Posted by David Corby on October 23, 2014

We maintained a Hall of Fame prediction model that, overall, works pretty well. This looks like a good list, yes?

hof

 

However, keep scrolling and you'll see that a few players are slipping through the cracks. Miller is already in and good money is on both Mutombo's and Nash's eventual inductions.

nashmutom

 

 

So we've tweaked our model a little bit. It's no less simple than what we've been doing, but it casts a wider net around those factors that voters and the media prioritize for player inductions. Its criteria include All-Star games, leaderboard appearances, peak dominance, championships, and the player's height (yes, height!). Many of these variables are considered as well by our old model.

A necessary disclaimer is that Hall voters, to varying extents over the years, have used criteria that are difficult to account for in a simple predictive model such as college stardom, FIBA success, foreign careers, and so on. In a nutshell, we're considering plaudits earned while playing in the NBA so adjust as you wish those careers of players like Manu Ginobili and Pau Gasol who have racked up FIBA medals in addition to their pro career.

Anyway, here's the list of the top 25 retired and active players...

 

RETIRED:                                                             ACTIVE:

hof2_car hof2_act

Except for Mutombo (6.4% to 86.8%) nothing changes too dramatically. Ben Wallace gets back in the race, and Nash becomes a virtual lock. Chauncey Billups and Shawn Marion move up significantly while Carmelo falls 10+ points.

To gauge your thinking about how many players "should" get in, here are the number of players in every NBA season between 1979-80 and 1999-00, inclusive, that were eventually enshrined:

active_num

We used the logistic regression method (same as before) and found that this works fairly well:

my $logit = -0.20303
              + -0.14203 * height_inches
              +  0.80573  * championships
              +  0.01594  * leaderboard_points
              +  0.41568  * peak_ws
              +  1.02443  * all_star_games

I'll get the documentation page up shortly which will explain a few of the nuances, for example how we determine "leaderboard points" and a few other particulars.

5 Comments | Posted in Announcement, Basketball-Reference.com, CBB at Sports Reference

More Game Play Finder Additions

Posted by Mike on October 23, 2014

Screen Shot 2014-10-16 at 4.47.56 PM We've added a text input to the top of the game play finder tool which works similar to our search autocomplete - start entering a player name and select the player you want from the dropdown and it will filter to show only plays in which that player was involved. For instance, if you want to see all of Peyton Manning's passing touchdowns or all of Devin Hester's touchdowns.

The play finder will now show defensive player stats as well, so you can search for something like all of Charles Woodson's interceptions returned for a touchdown and see which quarterbacks were the unlucky victims.

We've added selectors for QB kneels and sacks to the middle column as well, so you can get things like Russell Wilson's yards per rush with kneels excluded.

Finally, we've also added pass/rush distances and directions under [+] Pass/Rush Direction Options at the bottom of the form - clicking that link will expand the form to allow you to pick rush direction or pass location. This will let you fine-tune your searches, so you can find how the Eagles performed on deep passes to DeSean Jackson in 2013 or who's most successful running up the middle in 2014. Note that these are reliant on the play-by-play data of the plays (and so their definition of direction and distance) and a "deep" pass is considered to be one that travels 15+ yards in the air.

1 Comment | Posted in Announcement, Pro-Football-Reference.com

Per Possession Player Stats Added to College Basketball

Posted by David Corby on October 21, 2014

Just  a note that we added per possession statistics to the player pages on our college site. In particular, we express these as per 100 team possessions, which we estimate using component stats* and which we can calculate for every D-I school beginning with the 2010-11 season.

We recently added these to Basketball Reference so that users could easily compare output from different teams or eras, however the disparities in pace of play are even greater in college. Miami (Fl.) had the slowest pace in 2013-14 at 59.1 team possessions per game. On the other hand, Northwestern State and Virginia Military Institute led the NCAA at 78.9 and 77.5, respectively.

For now you can find these tables on the player pages:

 

rionbrown

 

And we'll be adding per possession statistics to the school pages, season registers and play-index tools soon enough.

 

*team_poss = 0.5 x ((fga + 0.475 x fta - orb + tov) + (opp_fga + 0.475 x opp_fta - opp_orb + opp_tov))

 

Comments Off | Posted in Announcement, Basketball-Reference.com, CBB at Sports Reference

Page 6 of 70« First...45678...203040...Last »
Part of the Network