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Chris Baker's avatar

As always, I love reading your stuff, Bob. However, I have to gripe about something: it always annoys me when journalists/talking heads either don't understand or pretend they don't understand how passer rating is calculated. The formula has been around for over 50 years, and it's not that complicated. I sort of get it if you're really bad at math (but then why bother asking for an explanation?), but you don't need to be able to decipher the mathematical formula to have at least a basic understanding of how it works. It is an imperfect metric that from time to time produces goofy results.

The formula looks at four factors, all normalized (divided by) the number of pass attempts: completions, yards, TDs and INTs. Those four factors each have their own formula, then the resulting numbers are combined to give the final number. Each factor also has its own cap, meaning once you cross that threshold, your rating can't go any higher. For example, I believe the cap for completion percentage is around 78%, so a QB that completes 80% of his passes will get the same score for that factor is a QB that completes 95% of his passes.

I think in this game what swung the QB rating in Jones' favor was his 2 TDs with no INTs vs. CJ's 0 TDs and 1 INT. Failing to throw a TD results in a zero for that factor, which lops off a 25% chunk of your QB rating right away, meaning the best you can do at that point is 118.8. Jones was better in both the TD/ATT and INT/ATT factors, and they were very close in the YDS/ATT factor (7.9 vs. 7.4). The only factor CJ won by a health margin was completion percentage.

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IndyJeffrey's avatar

They do not have a QB, sadly.

This is a collapse, or will be if they lose Sunday.

Then again, I am the same guy who thought seven wins was a pie in the sky dream heading into week one.

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