Ok saw this in the other thread. What does it mean. It is not completion % because last year he was at 64.6% for that. So does this then add the passes that were on target but were not caught. If so that seems a bit subjective. For instance it could be on target but a hospital pass. So the guy gets his clock cleaned as soon as it touches his hands. Is that considered a catch able pass?
Introducing the PFF Passer Rating | PFF News & Analysis | PFF
www.profootballfocus.com
Changing the Inputs
The first Stat Sheet Misconceptions article dealt with completion percentage, and offered a better alternative we called “Accuracy Percentage”. The first step in fixing the Passer Rating formula was to upgrade the Completion Percentage component to PFF’s Accuracy Percentage. With this move, dropped passes, throw aways, and spikes are now accounted for.
.
The second alteration was replacing Yards with “Yards in Air” to reflect the distance that completed passes travel from passer to target. While a quarterback has some effect on yards after the catch, this is difficult to quantify, so we’ve opted to boil it down to the point at which they surely have control.
.
.
Changing the Constants
We eliminated the “+2.083”, because it was simply not needed. To fix the issue of overvaluing touchdowns and interceptions in the old formula, the constants for each were lowered, to 20x for touchdowns and 45x for interceptions. Those values are more consistent with what others have found, and they worked well in this formula too. The last constant-related change was moving the multiplier from 4.16667 to 4.6667; a slight difference, but it adjusts the numbers to be more in line with the look of the old rating.
The more you know.
C
