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Old 22.05.2011, 08:15 PM
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Default Quarterback Rating?

Can someone clarify how this statistic is produced because it seems quite complicated?
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Old 22.05.2011, 08:29 PM
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http://en.wikipedia.org/wiki/Qb_rating

wikipedia covers it better than any of us will... it looks at completions, yards, touchdowns, and interceptions per passing attempt.

purely a throwing stat, so obviously some things are left out of the model, especially if you have a more dynamic quarterback, but its a good way to measure the efficiency of quarterbacks.



College and the NFL use different ratings (so 100 in college is a decent/average game, whereas 100 in the pros is pretty good)
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Old 22.05.2011, 08:47 PM
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Quote:
Originally Posted by FightingIllini07 View Post
http://en.wikipedia.org/wiki/Qb_rating

wikipedia covers it better than any of us will... it looks at completions, yards, touchdowns, and interceptions per passing attempt.

purely a throwing stat, so obviously some things are left out of the model, especially if you have a more dynamic quarterback, but its a good way to measure the efficiency of quarterbacks.



College and the NFL use different ratings (so 100 in college is a decent/average game, whereas 100 in the pros is pretty good)
Great thanks a lot!
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Old 22.05.2011, 10:50 PM
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It's also total bunk...and situation/system-biased, especially now in this day and age.
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Old 23.05.2011, 05:45 PM
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It's hardly total bunk, both are skewed a little towards favoring accuracy. A lot of groups that examine stats like yards per pass "attempt". Rating tends to be a bit inflated for any system that involves a lot of short passes (accuarcy goes up). Working in yards per attempt helps determine if all those completions are actually doing something (7 yards per attempt is a good benchmark).

If you're running short passes and throw it say 24 times, you'd expect about 16 completions. If you were running a more "vertical" passing game you'd be happy with anything over 12. But in either case, you'd want at least 170 passing yards (either a lot of 8-10 yard short passes or mixing in a few 20+ gains with more incompletions). A "good" YPA would have 200+ yards for those 24 attempts.

Yards per attempt also helps rate passing by heavy running teams. Teams like Georgia Tech or Navy (or the mid 1970s Dolphins for that matter) are likely to have single-digit passing attempts per game. On the other hand, they have HUGE YPA (when you run that much, you don't pass to get first downs, you pass to SCORE). Navy has had games with 20+ YPA (on likely 4 passes, 2 or 3 complete for 30-40 yards each).
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Old 23.05.2011, 07:34 PM
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you can be a superbowl quality Quaterback and have a low QB rating, its a nice stat but i dont have total faith in it.
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Old 26.05.2011, 08:58 PM
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You may find the following artilce interesting. It is several years old, but explains how, when any the QB rating system was devised - and the pros and cons of it.

http://www.bluedonut.com/qbrating.htm

In a nutshell, it was devised in the early 1970's, based on the passing stats from the 1970 NFL season. The various componets were weighted so that the "average" NFL passer by 1970 standrds would have a rating of 66.66. These days, rule changes and the evolution of the passing game mean that the average rating for a starting QB is closer to 85.
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Old 26.05.2011, 09:27 PM
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Quote:
Originally Posted by Rammsoldat View Post
you can be a superbowl quality Quaterback and have a low QB rating, its a nice stat but i dont have total faith in it.
Great point. Just look at Eli Manning and Philip Rivers. Eli is 52nd all-time and Rivers in 2nd!
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Old 26.05.2011, 10:37 PM
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Quote:
Originally Posted by Devilfalc View Post
You may find the following artilce interesting. It is several years old, but explains how, when any the QB rating system was devised - and the pros and cons of it.

http://www.bluedonut.com/qbrating.htm

In a nutshell, it was devised in the early 1970's, based on the passing stats from the 1970 NFL season. The various componets were weighted so that the "average" NFL passer by 1970 standrds would have a rating of 66.66. These days, rule changes and the evolution of the passing game mean that the average rating for a starting QB is closer to 85.
Exactly. I posted that awhile back. Which is why everyone today not name JaMarcus Russell has a QB rating in the 90's - it needs to be completely overhauled or just done away with. There was another article explaining that it was actually junk-stat science to begin with...a measurement for entertainment purposes only. But everyone has such a dire need to compare, we are stuck with this chicanery.
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Old 01.07.2011, 05:47 PM
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Okay, this is a long shot but i thought i'd throw it out there:

Does anyone remember a simpler/alternative way (except for unusual or extreme stats it worked well) to work out an NFL passer rating that used to be printed near the back of an old UK American football magazine?
Almost certain it was a Ken Thomas magazine, probably 'Touchdown' or maybe whatever followed it.
I thought i still had a few copies, but doesn't look like it.

It was something like (Comp %) + (Ave Gain x5) + (TD % x4) - (Int % x5) x5/6

But that ain't quite right, as i can't get it to match what it should be...
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