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Good Ref / Bad Ref was built for football fans and data nerds who want to better understand the calls on the field and how officiating fits into the story of a game.

Our goal is to make NFL officiating data simple, transparent, and useful.

What are the penalty trends? Are there more penalties this season than last? Which referee crews see the most accepted penalties, and which types? Which teams are being penalized most often, and for what?

We’re committed to presenting the best data we can with clarity, transparency, and rigor.

That means explaining our methodology, correcting mistakes when we find them, and welcoming criticism.

We’re excited to keep building simpler, better ways to understand the numbers behind NFL officiating.