List of Major League Baseball career ERA leaders
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In
baseball statistics Baseball statistics play an important role in evaluating the progress of a player or team. Since the flow of a baseball game has natural breaks to it, and normally players act individually rather than performing in clusters, the sport lends itsel ...
, earned run average (ERA) is the mean of
earned run In baseball, an earned run is any run that was fully enabled by the offensive team's production in the face of competent play from the defensive team. Conversely, an unearned run is a run that would not have been scored without the aid of an erro ...
s given up by a
pitcher In baseball, the pitcher is the player who throws ("pitches") the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw ...
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 run In baseball, an earned run is any run that was fully enabled by the offensive team's production in the face of competent play from the defensive team. Conversely, an unearned run is a run that would not have been scored without the aid of an error ...
s and are not used to determine ERA. This is a list of the top 100 players in career earned run average, who have thrown at least 1,000 innings.
Ed Walsh Edward Augustine "Big Ed" Walsh (May 14, 1881 – May 26, 1959) was an American pitcher and manager in Major League Baseball. From 1906 to 1912, he had several seasons where he was one of the best pitchers in baseball. Injuries shortened his c ...
holds the MLB earned run average record with a 1.816.
Addie Joss Adrian "Addie" Joss (April 12, 1880 – April 14, 1911), nicknamed "the Human Hairpin", was an American professional baseball pitcher. He pitched for the Cleveland Bronchos of Major League Baseball, later known as the Naps, between 1902 and 191 ...
(1.887) and
Jim Devlin James Alexander Devlin (June 6, 1849 – October 10, 1883) was an American Major League Baseball player who played mainly as a first baseman early in his career, then as a pitcher in the latter part. He played for three teams during his five ...
(1.896) are the only other pitchers with a career earned run average under 2.000.


Key


List

*Stats updated as of the end of the 2022 season.


See also

*
Baseball statistics Baseball statistics play an important role in evaluating the progress of a player or team. Since the flow of a baseball game has natural breaks to it, and normally players act individually rather than performing in clusters, the sport lends itsel ...
* List of Major League Baseball annual ERA leaders


Notes


References


External links

* {{Baseball records
ERA An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. Comp ...
ERA in career