The 5 O'Clock Club: The difference between passer rating and quarterback rating

The 5 o’clock club aims to provide a forum for reader-driven discussion at a time of day when there isn’t much NFL news being published. Feel free to introduce topics that interest you in the comments below.

Two common measures that can be confusing

There are two statistics that are commonly used to measure quarterback performance:

Passer Rating is the official NFL statistic, while QBR was an ESPN invention designed to provide a more comprehensive evaluation of quarterback performance..

I have listed the top-15 quarterbacks of the 2017 regular season in the chart below. I have highlighted the top ranked quarterback for each rating system, as well as the Redskins 2017 starting quarterback, Kirk…