Pass Defense %

[Front Office Midget]

So... what the crap does this stat mean now? I used to have no idea, but hoped my guys would get over 20%... now, I'm lost again, as players are way over 80%. Have I missed a discussion about this?

[Ben E Lou]

{sigh}

Pass Cover: Ints - Interceptions, IRYd - Interception Return Yardage, TD - Interception Return Touchdowns, Defn - Passes Defensed, Cght - Passes Caught by Covered Receiver, PPly - Passing Plays on Field, PDPct - Pass Defense Percentage (100 is a perfect score).

[Front Office Midget]

Ummm, I know what it literally MEANS, just not what it translates to statistic wise.

In 2K4, for instance, I don't think I ever saw over 30% in that statistic, ever. Now, I see over 90%. I'm not sure how the stat is calculated or what it represents.

From looking at individual games, it appears that games where there are 0 defenses and 0 catches, the CB gets 82.5% for that game. 0 defenses with 2 catches yielded a 37.5%. For the season, he had 17 defenses, 24 caught, 302 plays, and a 90.4%. Just not sure where the % comes from now (wasn't sure on 2k4 either)

[Ben E Lou]

Ummm, I know what it literally MEANS, just not what it translates to statistic wise.

In 2K4, for instance, I don't think I ever saw over 30% in that statistic, ever. Now, I see over 90%. I'm not sure how the stat is calculated or what it represents.

From looking at individual games, it appears that games where there are 0 defenses and 0 catches, the CB gets 82.5% for that game. 0 defenses with 2 catches yielded a 37.5%. For the season, he had 17 defenses, 24 caught, 302 plays, and a 90.4%. Just not sure where the % comes from now (wasn't sure on 2k4 either)Ah. Some folks here derived the formula for FOF2K4, and I'd imagine could do so for this version at some point. I may begin to take a crack this evening.

[QuikSand]

If I get an easy chance, I'll work on it today. It's usually not too tough to back out. I think it's centered on a value around 80.

(edit - right, 82.5, that's what I meant)

[Eaglesfan27]

I looked at it quickly and didn't test my theory extensively, but it seemed like it might have been a fairly simple formula (which is now escaping my mind.) I'll look at it tonight if no one else does before then.

[fantastic flying froggies]

'm not sure if it helps any, but here was the formula for 2k4:

20+(50*passes defended + 100*interceptions - 25*passes caught)/pass plays

[Leonidas]

All I know is in all the experimenting I did on defensive gameplanning I could do nothing to make this number better or worse. An all pass coverage defense only managed to make my run defense terrible.

[twothree]

An initial formula to use for PDPct is

(825 – {{13.5*Caug}*100/PPly})/10 when Ints = 0 and Defn = 0

Any calculation that has {} around it needs to be rounded down to the nearest whole number.


Example player one: 0 Ints, 0 Defn, 1 Caug, 39 PPly

{13.5 * Caug} = {13.5} = 13
(825 – {{13.5*Caug}*100/PPly})/10 = (825 – {13*100/39})/10 = (825-33)/10 = 79.2

Example player two: 0 Ints, 0 Defn, 2 Caug, 39 PPly

{13.5 * Caug} = {27.0} = 27
(825 – {{13.5*Caug}*100/PPly})/10 = (825 – {27*100/39})/10 = (825-69)/10 = 75.6


This formula is just my best guess. I haven't tested the interception part or the pass defense part of the equation. Each caught pass subtracts about 135/PPly from the baseline of 82.5. Each interception looks to add around 500/PPly and each pass defended looks to add around 220/PPly to 250/PPly. For the passes caught part I believe it to be fairly close from my limited testing.

[Front Office Midget]

I don't understand why numbers are thrown in there like 825 or 13.5.... why it isn't a more basic formula. This seems more abstract than the QB Rating. Is this actually used anywhere, or did Jim just make it up?