Pertaining to the game
, ERA (Earned Run Average) is a statistical measure of the effectiveness of a pitcher. It is computed by the following
ERA = (earned runs allowed)*(9)/(innings pitched)
Obviously, the lower the ERA, the more effective the pitcher, with an ERA of around 1.50 or below being considered
If Tim Hudson, starting pitcher for the Atlanta Braves, pitches 38 innings
spread out over the first 6 games
of the season, and allows 4 earned runs during
, his ERA would be (4*9)/38 or 0.95. Thus he would be seen to be an extremely effective pitcher.