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Additional Possession and Play-by-Play Enhancements on Hockey-Reference

Posted by Hans Van Slooten on June 17, 2014

As I mentioned a couple of weeks ago, we continue to work on our possession and play-by-play stats, and we have released the next enhancement, additional situations.

As a brief primer on what the new situations mean:

  • All Situations, Even Strength, Power Play, and Short-Handed are the traditional situations and mean what you expect them to.
  • 5-on-5 is situations where there were five skaters on the ice for both teams. It is similar to Even Strength, but doesn't include 4-on-4.
  • 5-on-5 Close is situations where there were five skaters on the ice for both teams and:
    - The score is within 1 point in the 1st or 2nd Period, or
    - The score is tied in the 3rd Period.
  • 5-on-5 Tied is situations where there were five skaters on the ice for both teams and the score was tied.

When you click on a situational tab, all of the stats on that page are for that situation (Blocks, Hits, Corsi For, etc.).

Where are they?

To find these stats, go to a player's page (one who's played in a game since the 2007-08 season) and you will see a link to "Additional Stats":

Screen Shot 2014-06-05 at 3.26.02 PM

Clicking on that will take you to the Additional Stats pages where you can see these new enhancements.

We welcome any feedback or questions you have about these new features.

Comments Off | Posted in Advanced Stats, Announcement, Features, Hockey-Reference.com

Introducing Per 100 Possessions Statistics

Posted by David Corby on June 17, 2014

If you've been browsing recently, you've may have noticed that we added per-100 possession statistics tables to the player pages and team pages (and for both the regular season and playoffs). For now, we're able to estimate team possessions going back to the 1973-74 season.

We also have league-wide tables that correspond to those on the player and team pages, with stats for every player, and even totals for all individual team stints for those players that were traded, re-signed, etc. Sometimes users tend to not to find these but they're extremely useful for sorting or exporting and doing your own analysis.

Here's the easiest way to find those tables: Mouseover the 'seasons' link and click on Per Poss on the dropdown menu:

 

per_poss

 

(Similarly, these are available for the playoffs, as well - corresponding links can be found in the 'playoffs' site section)

 

Per-Possession statistics are an easy way to nullify the distorting effects of pace and compare players more easily across teams and eras. For the record, we estimate league pace going back to the 1973-74 season using the formula provided in our statistics glosssary, and estimate it for individual teams going back  to 1950-51 by estimating component statistics.

 

 

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

Beta Play-by-Play Stats Now Available for Players on Hockey-Reference

Posted by Hans Van Slooten on June 5, 2014

We are beginning to release some new stats on Hockey-Reference that we are lumping together into "Play-by-Play Stats". In this initial release, we are including basic counting stats on the player level -- like Hits, Blocks, Takeaways, and Giveaways -- as well as possession stats like Corsi and Fenwick.

Screen Shot 2014-06-05 at 3.27.14 PM

We intend to provide a full introduction to all of these new stats on the site before they come out of beta, but for now take a look at this article over at Grantland. These stats come with a few of caveats, which is why they are being released as "beta":

  1. There are a few games missing from the data that we are working to remedy.
  2. This release only includes individual players. Teams and a Play Index are under development.
  3. Corsi and Fenwick numbers are not scaled to 60 minutes as is standard. These will be added in the future.
  4. The Corsi/Fenwick numbers are only provided for Even Strength situations. Other situations (e.g. SH, PP, 5-on-5 close, etc.) will be provided in the future.
  5. This data only goes back to the 2007-2008 season.

To see these new stats, simply go to a player page of someone that has played since the 2007-08 season and click on the "Additional Stats" tab in their NHL Stats table:

Additional Stats

With that in mind, we welcome any feedback and look forward to expanding this area significantly in the off-season.

 

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

Team Positional Comparison Tool–in our opinion it’s pretty cool – Baseball-Reference.com

Posted by sean on May 30, 2014

Positional differences and performance by position are interesting ways to look at team performance. For instance as Phillies fan I know that CF and LF are hurting the Phillies, but just how much are they hurting relative to the league. This tool answers that question and many many more. (answer: a whole lot of hurt)

You select a year, the league and a stat, and we rank every team at each position by that stat and in some cases a summary of positions. This uses our positional splits to allot stats to positions or in some cases a prorated assignment of WAR and related stats by time played at each position. Now in one table you can see the worst or best team-positions in baseball.

There are some additional tools that allow you to highlight a particular team and mousing over a table cell informs you the players involved in producing that value.

I like this output so much I've also added it to our base league pages just below the pitching stats.

2014 AL League page

Team Comparison Tool - Baseball-Reference.com.

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

2014 Korean Baseball Organization Statistics – Baseball-Reference.com

Posted by sean on May 27, 2014

2014 Korean Baseball Organization Statistics - Baseball-Reference.com.

Updating daily. We are working with Brian Cartwright on this project. Thanks to Brian for putting together these stats.

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

Tooltip for Blown Saves, Holds on Main Pitching Table

Posted by admin on May 6, 2014

The pitching table is getting pretty wide on the team and player pages, so we've added a new little twist to our player pages (soon to be on team and league pages) where if you hold your mouse over the save column for a pitcher a little box pops up and it will show you the blown saves, save opps, save situations and holds for that pitcher. See the screenshot below.

Screenshot 2014-05-06 16.52.18

This data is already on the "More Stats" page linked just above the pitcher's primary stats, but not everyone makes it onto those pages.

test on Mariano Rivera Page

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

Split Finder Allows you to Excludes Incomplete Results when PBP is Missing

Posted by sean on May 5, 2014

This is a subtle one, but as you may know play-by-play and ergo certain split data like platoon info and count data is not complete back to 1914. We have 100% of play-by-play back to 1973 and the 98%+ back to 1954. Details Here.

So we are now allowing you to exclude the split seasons from the Play Index Split Finder where incomplete totals may occur, so a pre 1973 platoon split, or a pre 1988 by count split.

See the location of this checkbox below.

Screenshot 2014-05-05 15.25.49

Play Index Split Finder.

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

Fielding Independent Pitching (FIP) added to Baseball-Reference.com

Posted by sean on April 17, 2014

Last night, I added FIP (short for Fielding Independent Pitching) to the site. This is a sabermetric stat for pitchers that approximates ERA without the effect of their team's fielding ability. FIP actually correlates to future ERA better than ERA itself making it a superior indicator of future performance.

The idea is that the pitcher most directly controls the number of walks, home runs and strikeouts that occur and that the batters and fielders have a bigger say on whether balls in play are turned into outs and that most pitchers' Batting Average on Balls in Play (BAbip) reverts to a league average from one year to the next.

FIP is (13*HR + 3*(BB+HBP) - 2*SO)/IP + Constant(year). The constant is set so the yearly avg FIP equals the yearly avg ERA.

FIP can be looked at exactly like ERA and is scaled to exactly the same league average as ERA, but it's range will be slightly smaller.

Often a player with a low FIP and high ERA will improve, while a low ERA and high FIP indicates a likely regression as more hits start falling. I've placed FIP next to ERA to make this comparison more obvious, but if it begins making the ERA lookup too hard, I may move it further right on the pitching tables.

I've also added FIP and K% to the Play Index Season Finder. Right now, I don't believe we will add xFIP given the inconsistency in batted ball data, but that could change.

Player with big gap in FIP and ERA: Ricky Nolasco.

10 Comments | Posted in Advanced Stats, Announcement, Baseball-Reference.com, Most Wanted, Stat Questions

BBR Feature Add: Practice Shot Charts

Posted by sean on April 1, 2014

Practice Shot Charts.

NBA.com has really upped the level of detail they've added, so we're trying to respond with the latest and greatest data we can get. We've recently come to an agreement with a number of franchises for access to their practice film and have begun breaking down scrimmage data.

Practice shot charts seem to us the next frontier in basketball analytics. This data will show you who's improving, who isn't, and who is working on new aspects of their game. It's especially useful for players without a lot of playing time.

Before we roll it out sidewide, we've prepared some sample charts.

3 Comments | Posted in Advanced Stats, Announcement, Basketball-Reference.com, expire10d, Most Wanted, Stat Questions, Statgeekery, Uncategorized

PI Addition: Select Team Success as a Filter

Posted by sean on March 4, 2014

Play Index.

For many of the Play Index searches, we've added an option that allows you to filter the results by whether the team won the WS, the Pennant or even just made the playoffs. Enjoy.

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

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