Passing efficiency

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Passing efficiency, also known as pass efficiency, is an abstract number, derived from several statistics, intended as a measurement of the effectiveness of a quarterback passing the ball in NCAA or NFL football.

The NCAA passing efficiency for a quarterback is determined by the following formula:

((Y x 8.4) + (T x 330) - (I x 200) + (C x 100)) / A

...where Y = number of yards passed, T = number of touchdowns scored, I = number of interceptions thrown, C = number of completions, and A = number of attempts to pass.

The NFL system is similar, but uses Y x 4.17 for assigning a value to the yards passed, and forms a plateau for the low and high ends of the completion percentage, with a 30% completion being minimum and a 77.5% completion being maximum. Quarterbacks who have lower or higher completion percentages are treated as the minimum or maximum respectively.

(Citation: See http://football.stassen.com/pass-eff/)

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