How is a pitchers ERA worked out??

CanesFan82

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Jul 3, 2002
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ER/IP*9

ER = earned runs
IP = innings pitched, 1/3 (0.1) of inning equals 0.3333, 2/3 (0.2) of inning equals 0.6667 when inserted into formula above

Example:
Joe Blanton has allowed 58 ER in 116 2/3 (116.2) IP this year.

58/116.6667*9 = 4.474 ERA
 
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