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Fair Run Average (FRA) is scaled to run average and measures not only what a pitcher did, but also when he did it. Adjustments are made for defensive quality.
Fair Run Average differs from FIP in a few ways. While FIP is concerned only with what a pitcher is believed to control-typically strikeouts, walks, and home runs, though Prospectus includes hit batsmen in our FIP calculation-Fair Run Average takes things a step further. Pitchers receive credit for good sequencing, thus rewarding pitchers who seem to work out of jams more often than usual. Fair Run Average also considers batted ball distribution, base-out state, and team defensive quality (as measured by Fielding Runs Above Average).
Here is an example of the Fair Run Average spectrum based on the 2011 season:
Excellent - Clayton Kershaw 2.90
Great - Brandon McCarthy 3.42
Average - Ivan Nova 4.36
Poor - Brett Cecil 5.14
Horrendous - Jake Arrieta 5.88
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