EARNED RUN AVERAGE Definition & Meaning

earned run average

[ urnd ruhn av-er-ij, av-rij ]

Phonetic (Standard)IPA

noun

Baseball.

a measure of the effectiveness of a pitcher, calculated by dividing the number of earned runs scored against the pitcher by the number of innings pitched and multiplying the result by nine: : ERA
His earned run average is currently a worrisome 6.21, as he has pitched 42 innings and given up 29 earned runs.

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�y��vlog History and Origins

Origin of earned run average¹

First recorded in 1945–50

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Example Sentences

That couldn’t have worked any better: Lugo and Wacha each finished among the top 10 in earned run average in the American League, and the duo combined to pitch 373 innings.

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And, as evidenced by their 22nd-ranked team earned run average, it has led to a slew of cascading side effects.

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But on the mound, an uncharacteristically shaky Dodgers pitching staff — which ranks 22nd in earned run average so far this season — stumbled once again.

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In 2022, he led the Korea Baseball Organization, the country’s top league, in earned run average and strikeouts.

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He gave up a run and two hits to lower his earned run average to 1.98, second in the AL, and won his fifth straight start.

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