Name: Goose Egg Relief Pitching Metric
Creator: FiveThirtyEight
License: https://creativecommons.org/licenses/by/4.0/

About this Dataset

Goose Egg Relief Pitching Metric

This dataset introduces the 'Goose Egg,' a modern statistic proposed by FiveThirtyEight to better evaluate relief pitcher performance than the traditional save.
Based on game situations and outcomes, the Goose Egg framework tracks effective relief appearances, blown opportunities ('Broken Eggs'), and neutral outcomes ('Mehs').
The dataset includes season-level stats for MLB pitchers, with derived metrics like Goose Wins Above Replacement (gWAR), adjusted for park effects and league averages.

Tables

Goose Egg Relief Pitcher Stats

@fivethirtyeight.goose.goose_rawdata

628.17 kB
30,962 rows
12 columns

CREATE TABLE goose_rawdata (
  "name" VARCHAR,
  "year" BIGINT,
  "team" VARCHAR,
  "league" VARCHAR,
  "goose_eggs" BIGINT,
  "broken_eggs" BIGINT,
  "mehs" BIGINT,
  "league_average_gpct" DOUBLE,
  "ppf" BIGINT,
  "replacement_gpct" DOUBLE,
  "gwar" DOUBLE,
  "key_retro" VARCHAR
);