EARNEDRUNAVERAGE
Earned run average
In baseball statistics, earned run average is the mean of earned runs given up by a pitcher per nine innings pitched . 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 are recorded as unearned runs and are not used to determine ERA.The above text is a snippet from Wikipedia: Earned run average
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earned run average
Noun
The above text is a snippet from Wiktionary: earned run average
and as such is available under the Creative Commons Attribution/Share-Alike License.