List of Major League Baseball career ERA leaders
In baseball statistics, earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine. Runs resulting from defensive errors (including pitchers' defensive errors) are recorded as unearned runs and are not used to determine ERA.
Ed Walsh, the career leader in earned run average.
This is a list of the top 100 players in career earned run average, who have thrown at least 1,000 innings.
Ed Walsh holds the MLB earned run average record with a 1.816. Addie Joss (1.887) and Jim Devlin (1.896) are the only other pitchers with a career earned run average under 2.000.
Key
| Rank | Rank amongst leaders in career earned run average. A blank field indicates a tie. |
| Player | Name of player. |
| ERA | Total career earned run average. |
| * | denotes elected to National Baseball Hall of Fame. |
|---|---|
| Bold | denotes active player.[lower-alpha 1] |
List
Clayton Kershaw, the active leader and 37th all-time in career earned run average.
- Stats updated as of the 2019 season.
Notes
- A player is considered inactive if he has announced his retirement or not played for a full season.
References
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