David Wilson's Ratings and Rankings

    American College Football Rankings
Nutshell Sports Ratings

Nutshell Sports Ratings are based on the following components in order of priority:
  1. Head to had scores are the most important. Schedule strength is included naturally.
  2. The most recent games are most irrelevant.
  3. All these are formulated into one nice, simple number. That number indicates the overall strength of the team.

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Make it simple. Football Ratings in a nutshell.