These ratings are based on the Bradley-Terry method. Ratings are compiled for NCAA FBS (Division 1-A) football and Division 1 basketball. The basic method considers only win/loss results and home field advantage; the margin-aware method is modified to use margin of victory as well with diminishing returns for blowouts.

Home field and a small adjustment to produce more realistic win probabilities for teams at the extreme ends of the rating scales have only been applied to the ratings starting with 2011 football.

Starting in 2014, a preseason adjustment based on the previous year’s rating is included early in the season. This adjustment is gradually removed as more games are played and eventually disappears entirely. It has no effect on the late-season ratings but should produce more reasonable early-season results. In addition, team pages are now available showing each team’s results.

Due to the reduction in non-conference schedules, no ratings were produced for the 2020 college football season. The 2021 season ratings used the 2019 end-of-season ratings for the preseason adjustment, but this has been phased out by now. For basketball, teams that cancelled their seasons in 2020-21 will use a rating of 1 for preseason adjustment in 2021-22.

Details of the method are available here.

Current ratings
Previous years

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