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In baseball statistics, earned run average (ERA) is the average of earned runs allowed by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine.
Earned run average represents the number of earned runs a pitcher allows per nine innings -- with earned runs being any runs that scored without the aid of an error or a passed ball. ERA is the most commonly accepted statistical tool for evaluating pitchers.
15 Μαΐ 2022 · A pitcher's Earned Run Average (aka ERA) is a primary measure of his success. It is similar, but not identical to, run average. It is expressed as an average number of opponents' earned runs scored per notional nine inning game: ERA = (Earned Runs Allowed * 9) / Innings Pitched
5 ημέρες πριν · ERA stands for Earned Run Average, and it’s one of the most important statistics in baseball, especially when evaluating pitchers. It shows how many earned runs a pitcher gives up on average per nine innings. The lower the ERA, the better the pitcher is at preventing the opposing team from scoring.
22 Μαΐ 2023 · Earned Run Average, or ERA, lies at the heart of evaluating a pitcher's effectiveness in a baseball game. Developed by English-American sportswriter and statistician Henry Chadwick, ERA measures the number of earned runs allowed per nine innings pitched.
28 Μαρ 2024 · ERA, which stands for Earned Run Average, is a crucial measure for gauging a pitcher’s performance in baseball, highlighting how ERA work in the sport. It calculates the average earned runs a pitcher permits over the course of nine innings, providing a straightforward measure of their performance.
31 Μαΐ 2022 · Major League Baseball defines ERA (or Earned Run Average) as the “number of earned runs a pitcher allows per nine innings” without the assistance of an error from the pitcher’s defense. And if you love a good math equation, we’ll spell out the formula for finding a pitcher’s ERA. ERA = (Earned Runs / Innings Pitched) * 9.
