New Features: More Stats & Integration

Quite a few feature additions just went into production.

-First off, WPA is no longer expressed as a percentage. Every player still has the same value, it’s just 100 times less.

-WPA is now displayed in each player’s game log and all the dates in the game logs are linked back to the correct Win Probability graph.

-There’s a new table for both batters and pitchers in the player stat pages that include the following Win Probability & Leverage stats:

WPA: Win Probability Added.
-WPA: The total of a player’s negative contributions towards their team’s win/loss.
+WPA: The total of a player’s positive contributions towards their team’s win/loss.
pLI: Average Leverage on a plate-appearance basis.
inLI: Average Leverage when a pitcher starts an inning.
gmLI: Average Leverage when a pitcher enters the game.
exLI: Average Leverage when a pitcher exits the game (game ends not included).
Pulls: Number of times a pitcher has been pulled from a game before it ended.
G: The number of games pitched in.
phLI: Average Leverage when pinch-hitting.
PH: Pinch-hitting opportunities.
OBP Wins: Player’s wins in a context-neutral environment.
Clutchiness: Difference between WPA and a Leverage adjusted OBP Wins.

For more information about these stats, take a look at the following links:

-Tangotiger’s Critical Situation Series: Part 1, Part 2, Part 3.
-Clutchiness: The Blog.
-The One About Win Probability.

If you notice any problems, please let us know and we’ll fix them as quickly as possible.



David Appelman is the creator of FanGraphs.

6 Comments »

  1. Chris M said,

    August 11, 2006 @ 6:37 pm

    Great job with all the stuff you guys have been adding!

  2. tangotiger said,

    August 14, 2006 @ 1:02 pm

    Two huge thumbs up! The indie site of the year!
    – Tango & Tiger

  3. Mike said,

    August 15, 2006 @ 2:11 pm

    Just great stuff David! This site is one of the best on the net…you do a great job!

  4. Vince said,

    August 16, 2006 @ 9:35 pm

    Really great site, enjoy this very much. Keep up the good work.

  5. David Appelman said,

    August 17, 2006 @ 12:26 am

    Thanks everyone! There’s a lot more stuff we want to do. :)

  6. bedir than average said,

    September 1, 2006 @ 2:06 pm

    David, would it be anything more than intellectual curiousity to see WPA or LI in graphs?

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