earned run average

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earned run average

baseball statistic

Also known as: ERA

Learn about this topic in these articles:

Rivera

In Mariano Rivera
…652 saves, with a career earned-run average (ERA) of 2.21. Moreover, when he retired in 2013, Rivera had a lifetime adjusted ERA (ERA+; an ERA adjusted for opponents and ballparks, with the average major-league pitcher set at 100) of 205, far and away the highest ERA+ ever.
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