Sunday, July 25, 2010

How to calculate ERAs

Instructions
  1. Step 1

    Add up the total innings pitched. For every out that is recorded while you are pitching, you get one-third of an inning.

  2. Step 2

    Add up the total number of earned runs given up. If there are no errors in the inning, all the runs are earned runs. If there are errors, reconstruct the inning without the errors to see how many runs would have scored if the fielding had been perfect.

  3. Step 3

    Multiply the earned runs by 9.

  4. Step 4

    Divide by the total innings pitched.

  5. Step 5

    Round the number to the second decimal place. For example, 3.2051 is 3.21.

Question:Phil Hughes had an ERA of 4.04 - He pitched 5.1 innings with 3 strikeouts and 3 earned runs with no errors. Can you figure out from the instructions above and the information given, how they got 4.04 as an ERA?

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