Metrics & KPIsEarned run average (ERA)
Definition
Earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched. http://en.wikipedia.org/wiki/Earned_run_average
Formula
9 x (earned runs allowed) divided by (innings pitched)
Earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched. http://en.wikipedia.org/wiki/Earned_run_average