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How the QBR stat works, according to its architect

Is QBR a good statistic for measuring a quarterback? Originally answered on May 6th, 2016.

This question originally appeared on Quora - the knowledge sharing network where compelling questions are answered by people with unique insights. You can follow Quora on Twitter, Facebook, and Google+.

More from Quora: What does the analytics team at ESPN do?

Answer by Brian Burke, ESPN Senior Analytics Specialist, Creator of Advanced Football Analytics:

QBR is far from perfect, but it's light years ahead of what came before it.