(10-27-2020, 09:10 PM)mikesez Wrote: I definitely don't think the two touchdown passes should be equal. 
One was 28 yards, one was 9 yards.  
Yards divided by attempts and sacks is part of the sum.
I get that it's not perfect.
But the reason I don't trust QBR is I can't verify it using the play by play account of the game.  
I suppose they could add things to the play by play like, the time the QB had to throw, if he was running, which side he was running to, which hashmark he was standing next to when he threw it, which hashmark the receiver was on when he caught it, but...
Why?
At that point I'll just watch the game myself.

You CAN verify it by the play by play account of the game.  That is actually what QBR does... looks at each play individually within the context of the game, instead of just the sums or averages like Passer Rating does.  You can verify more with QBR than Passer Rating. QBR takes into account down and distance, area of the field, score, time, situation, yards after catch, opponent, etc. for each play.  All the things on the long form of the stat sheet instead of reducing metrics to sums and averages.  More information provides better context and a more realistic assessment.  Of course, watching the game and providing a coach's evaluation is better... but who has time for that with all 32 teams?  Next best thing is QBR to get a real comparison.

Your other comment about one TD being 28 yards and one being 9 is too simplistic.  What if Robinson had that same 1 yard dump off pass at the 50 yard line (that you or I could have throw to him) and he took it 50 yards to the house?  With your logic, that would be twice as good a play by Minshew as the 28 yard dime he threw to Conley... how does that make sense?  It doesn't.  A shovel pass in the red zone that goes to the house is basically a handoff by the QB, but he gets credit for a TD pass using Passer Rating, whereas QBR accounts for that. Reductionist methods attempt to take complex things and simplifying them; but in doing so, they lose context and accuracy.  The QBR gives a version closer to a coach's grade, while Passer Rating just looks at the sum of completions, attempts, yards, TD's and INT's without context.  Passer Rating is too reduced or simplified to be very accurate. That being said, there is usually a positive correlation between the two stats, but I'd typically go with QBR when there is a difference, particularly when looking at more data (i.e. a season or several games versus a single game).

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