Earned Run Average
Definition of Earned Run Average as it relates to Sports, Major League Baseball, Sports Baseball Statistics
Earned Run Average (ERA) represents the average number of earned runs a pitcher allows per nine innings pitched in Major League Baseball. It is a key statistic used to evaluate a pitcher's performance and is influenced by factors such as walks, hits, and strikeouts. ERA is calculated by dividing the total number of earned runs allowed by the number of innings pitched, then multiplying by nine. Lower ERAs indicate better pitching performances.