These rankings reflect all College Football seasons played to date. There are (4) different categories utilized to create these numerical rankings and the rankings are iterated until the data is stable.Winning Percentage Ranking Component
The Winning Percentage Rankings is the standard calculation for winning percentage but a team must have played 500 games to obtain the highest factor. Reduced factors are utilized for teams playing less than 500 games.Strength of Schedule Ranking Component
The higher the quality of opponent, the more points awarded to the strength of schedule ranking component. Points are assigned for playing a percentage of total games played against each opponent as well as quantity of times played against each opponent. The quality of opponent reflects how the teams are ranked in the College Football Data Warehouse All-Time Rankings.National Championship Ranking Component
50 points are assigned for being awarded a national championship from the AP Poll, Coaches Poll, and the Bowl Championship Series. 15 points are awarded (1900-current) for all other National Championships recognized by this site in addition to the lower division National Championships.Big 4 Bowls Ranking Component
Only the traditional Big 4 Bowls are utilized for this category. Winning in the Big 4 Bowls as well number of times played in a Big 4 Bowl (capped at 20 games) are criteria for points.
1901 (season) - Current Rose Bowl
1934 (season) - Current Orange Bowl
1934 (season) - Current Sugar Bowl
1936 (season) - 1991 (season) Cotton Bowl
1986, 1988, 1992 (seasons) - current Fiesta Bowl
Note: The 1986 and 1988 Fiesta Bowl Games are included due to the consideration those (2) games were National Championship Games played by Independents.Quarter Century and Decade Rankings
The Winning Percentage component is the standard calculation for winning percentage but a team must have played 100 games (Quarter Century Rankings) or 50 games (Decade Rankings) to obtain the highest factor. Reduced factors are utilized for teams playing less than 100 games (Quarter Century Rankings) or 50 games (Decade Rankings).
The Strength of Schedule component is based on the period only - not the entire rankings.
The National Championship component uses the "Recognized National Championships" for the period.
The Big 4 Bowl component utilizes all the Big 4 Bowl Games played in the period. Points are award for participating in the game and additional points are awarded for winning.Conference Rankings
Conference Rankings are based on "Current" Conference Members whether they were a member at the time of the ranking or not. These ranking give a historical perspective of how the conference would have been ranked using current conference membership.
The Winning Percentage and Strength of Schedule components are based on the average of Conference members for the period.
The National Championship and Big 4 Bowl components are based on the total of the Conference members for the period.