earned run average
noun
: the average number of earned runs per game scored against a pitcher in baseball determined by dividing the total of earned runs scored against the pitcher by the total number of innings pitched and multiplying by nine
Cite this Entry
“Earned run average.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/earned%20run%20average. Accessed 1 Jul. 2026.
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