We’ve just added play-by-play data in the Play Log section for each game. At this time, play-by-play data includes the Leverage Index, Run Expectancy, Home Team Win Expectancy, and the Batter’s Win Probability Added (WPA) for each and every play of the 2002-2006 season.
Win Expectancy is calculated as the result of the play, while Leverage Index and Run Expectancy are calculated before the play happened.
Everything is calculated before the play happened. We’ve also added BRAA which is the difference between Run Expectancy at the start of the play and the end of the play.
If you click on the play, you’ll get the pitch sequence for each play in a little pop-up box. The playoff games pitch sequence is a little screwed up right now. It “snakes” around, so for the first line it will be “pitch1, pitch2, pitch3, result” and then for the next line “result, pitch3, pitch2, pitch1”. We’ll try to get this cleared up soon.
We’ve also moved all the Win Probability graphs out of the Team section and into the Scoreboard section. We’re just trying to make things a little more organized and it will allow us to eventually vastly enhance our team stats.
If you have any problems or suggestions on how to improve the new scoreboard or play-by-play sections, don’t hesitate to let us know!
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Fantastic stuff! I made a couple of comments here:
http://www.insidethebook.com/ee/index.php/site/comments/fangraphs_continues_its_expansion/