| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| New Mexico State | Sun Belt | 0 | 6 | 127 | -26.3 | 128 | -20.6 | | |
| Central Florida | American Athletic | 0 | 6 | 99 | -12.0 | 127 | -20.3 | | |
| Troy | Sun Belt | 0 | 5 | 114 | -18.8 | 126 | -18.4 | | |
| Eastern Michigan | Mid-American | 1 | 6 | 123 | -23.7 | 125 | -17.7 | | |
| Miami (Ohio) | Mid-American | 0 | 6 | 125 | -25.2 | 124 | -16.7 | | |
| Wyoming | Mountain West | 1 | 5 | 113 | -17.8 | 123 | -16.0 | | |
| North Texas | Conference USA | 0 | 5 | 124 | -24.7 | 122 | -15.8 | | |
| Purdue | Big Ten | 0 | 6 | 92 | -8.4 | 121 | -15.6 | | |
| Texas State | Sun Belt | 0 | 4 | 118 | -19.7 | 119 | -14.9 | | |
| Texas-El Paso | Conference USA | 1 | 4 | 126 | -26.2 | 120 | -14.9 | | |
| Florida Atlantic | Conference USA | 1 | 5 | 110 | -16.1 | 117 | -13.9 | | |
| Texas-San Antonio | Conference USA | 1 | 6 | 107 | -15.4 | 118 | -13.9 | | |
| Kansas | Big 12 | 0 | 5 | 106 | -14.2 | 116 | -12.8 | | |
| Nevada-Las Vegas | Mountain West | 1 | 5 | 103 | -13.1 | 115 | -12.6 | | |
| Louisiana-Monroe | Sun Belt | 0 | 5 | 115 | -19.0 | 114 | -12.4 | | |
| North Carolina-Charlotte | Conference USA | 1 | 4 | 128 | -29.8 | 113 | -12.1 | | |
| Buffalo | Mid-American | 1 | 4 | 102 | -12.7 | 112 | -11.9 | | |
| Army | Independent | 1 | 4 | 97 | -11.6 | 111 | -11.8 | | |
| Massachusetts | Mid-American | 1 | 5 | 108 | -16.0 | 110 | -11.6 | | |
| Ball State | Mid-American | 1 | 5 | 105 | -13.3 | 109 | -11.4 | | |
| Nevada | Mountain West | 2 | 4 | 95 | -10.8 | 108 | -10.8 | | |
| Louisiana-Lafayette | Sun Belt | 1 | 3 | 100 | -12.4 | 105 | -10.7 | | |
| Florida International | Conference USA | 2 | 4 | 91 | -8.2 | 106 | -10.7 | | |
| Fresno State | Mountain West | 1 | 5 | 116 | -19.1 | 107 | -10.7 | | |
| Tulane | American Athletic | 1 | 4 | 119 | -21.0 | 104 | -10.6 | | |
| Idaho | Sun Belt | 1 | 4 | 121 | -22.5 | 103 | -10.3 | | |
| Hawaii | Mountain West | 1 | 5 | 109 | -16.1 | 102 | -10.2 | | |
| San Jose State | Mountain West | 2 | 4 | 101 | -12.5 | 100 | -8.2 | | |
| Colorado | Pac 12 | 2 | 4 | 84 | -5.4 | 101 | -8.2 | | |
| Georgia State | Sun Belt | 2 | 3 | 120 | -22.1 | 99 | -7.9 | | |
| Connecticut | American Athletic | 2 | 4 | 82 | -4.7 | 97 | -7.7 | | |
| Colorado State | Mountain West | 2 | 4 | 89 | -6.6 | 98 | -7.7 | | |
| Georgia Tech | ACC | 1 | 5 | 39 | 9.0 | 96 | -7.5 | | |
| Boston College | ACC | 1 | 4 | 64 | 1.5 | 95 | -7.4 | | |
| New Mexico | Mountain West | 3 | 3 | 111 | -16.8 | 93 | -7.3 | | |
| Middle Tennessee State | Conference USA | 2 | 4 | 75 | -1.9 | 94 | -7.3 | | |
| Southern Methodist | American Athletic | 1 | 4 | 96 | -11.4 | 92 | -6.9 | | |
| Vanderbilt | SEC | 1 | 4 | 65 | 1.2 | 91 | -6.7 | | |
| Old Dominion | Conference USA | 2 | 3 | 122 | -23.3 | 90 | -6.4 | | |
| South Alabama | Sun Belt | 2 | 3 | 117 | -19.3 | 89 | -5.9 | | |
| Maryland | Big Ten | 1 | 4 | 81 | -4.5 | 88 | -5.4 | | |
| Virginia | ACC | 1 | 4 | 72 | -0.6 | 87 | -5.3 | | |
| Oregon State | Pac 12 | 1 | 4 | 87 | -6.5 | 86 | -5.2 | | |
| Kent State | Mid-American | 2 | 4 | 112 | -17.2 | 85 | -5.1 | | |
| Akron | Mid-American | 2 | 4 | 98 | -11.7 | 84 | -4.7 | | |
| Northern Illinois | Mid-American | 3 | 3 | 69 | -0.1 | 81 | -4.6 | | |
| Wake Forest | ACC | 2 | 4 | 83 | -4.8 | 82 | -4.6 | | |
| Air Force | Mountain West | 2 | 3 | 90 | -7.2 | 83 | -4.6 | | |
| Iowa State | Big 12 | 1 | 4 | 80 | -4.0 | 80 | -4.5 | | |
| Central Michigan | Mid-American | 2 | 4 | 70 | -0.3 | 78 | -3.8 | | |
| Southern Mississippi | Conference USA | 3 | 3 | 85 | -5.7 | 79 | -3.8 | | |
| Syracuse | ACC | 2 | 3 | 78 | -2.4 | 77 | -3.3 | | |
| Virginia Tech | ACC | 2 | 4 | 44 | 8.0 | 76 | -3.0 | | |
| Arkansas State | Sun Belt | 2 | 3 | 94 | -10.4 | 75 | -2.9 | | |
| Rice | Conference USA | 2 | 3 | 104 | -13.3 | 74 | -2.5 | | |
| Arkansas | SEC | 2 | 4 | 34 | 9.6 | 73 | -1.9 | | |
| Louisville | ACC | 1 | 4 | 45 | 7.8 | 72 | -1.8 | | |
| Louisiana Tech | Conference USA | 3 | 3 | 66 | 0.8 | 70 | -1.6 | | |
| San Diego State | Mountain West | 3 | 3 | 88 | -6.5 | 71 | -1.6 | | |
| North Carolina State | ACC | 3 | 2 | 47 | 6.6 | 68 | -1.5 | | |
| South Carolina | SEC | 3 | 4 | 60 | 3.5 | 69 | -1.5 | | |
| Nebraska | Big Ten | 3 | 4 | 32 | 9.6 | 66 | -0.9 | | |
| South Florida | American Athletic | 2 | 3 | 73 | -0.9 | 67 | -0.9 | | |
| Tulsa | American Athletic | 3 | 3 | 86 | -6.2 | 65 | -0.5 | | |
| Tennessee | SEC | 2 | 3 | 15 | 16.0 | 64 | 0.2 | | |
| Kansas State | Big 12 | 2 | 3 | 54 | 4.0 | 63 | 0.3 | | |
| USC | Pac 12 | 3 | 3 | 4 | 19.5 | 62 | 1.1 | | |
| Cincinnati | American Athletic | 2 | 3 | 68 | -0.1 | 60 | 1.4 | | |
| Rutgers | Big Ten | 2 | 3 | 74 | -1.3 | 61 | 1.4 | | |
| Washington | Pac 12 | 2 | 3 | 26 | 12.6 | 59 | 1.5 | | |
| Missouri | SEC | 3 | 3 | 50 | 5.8 | 58 | 1.6 | | |
| Indiana | Big Ten | 3 | 3 | 67 | 0.4 | 57 | 1.7 | | |
| Minnesota | Big Ten | 4 | 3 | 77 | -2.4 | 56 | 1.8 | | |
| Arizona State | Pac 12 | 3 | 3 | 42 | 8.4 | 55 | 2.2 | | |
| West Virginia | Big 12 | 2 | 3 | 16 | 15.5 | 54 | 2.7 | | |
| Arizona | Pac 12 | 4 | 2 | 57 | 3.8 | 53 | 2.8 | | |
| Miami (Fla.) | ACC | 3 | 2 | 33 | 9.6 | 52 | 3.0 | | |
| Ohio U. | Mid-American | 4 | 2 | 93 | -8.5 | 51 | 3.1 | | |
| Kentucky | SEC | 3 | 2 | 52 | 5.0 | 50 | 3.4 | | |
| Bowling Green State | Mid-American | 5 | 2 | 62 | 2.7 | 49 | 3.5 | | |
| Texas | Big 12 | 2 | 4 | 55 | 4.0 | 47 | 3.7 | | |
| East Carolina | American Athletic | 3 | 3 | 58 | 3.7 | 48 | 3.7 | | |
| Western Michigan | Mid-American | 2 | 3 | 79 | -2.5 | 44 | 3.8 | | |
| Georgia | SEC | 4 | 2 | 17 | 15.2 | 45 | 3.8 | | |
| Illinois | Big Ten | 3 | 2 | 61 | 3.3 | 46 | 3.8 | | |
| North Carolina | ACC | 3 | 1 | 21 | 14.7 | 43 | 4.1 | | |
| Utah State | Mountain West | 3 | 2 | 36 | 9.4 | 42 | 4.5 | | |
| Wisconsin | Big Ten | 5 | 2 | 30 | 10.5 | 41 | 4.7 | | |
| Oregon | Pac 12 | 3 | 3 | 41 | 8.7 | 39 | 4.8 | | |
| Duke | ACC | 4 | 1 | 40 | 8.9 | 40 | 4.8 | | 23 |
| Boise State | Mountain West | 4 | 2 | 22 | 14.6 | 38 | 5.3 | | |
| Georgia Southern | Sun Belt | 4 | 1 | 76 | -2.3 | 37 | 5.6 | | |
| Texas Tech | Big 12 | 4 | 2 | 28 | 11.2 | 36 | 5.7 | | |
| Auburn | SEC | 3 | 2 | 38 | 9.1 | 33 | 6.2 | | |
| UCLA | Pac 12 | 4 | 2 | 25 | 12.8 | 34 | 6.2 | | |
| Marshall | Conference USA | 5 | 1 | 71 | -0.3 | 35 | 6.2 | | |
| Western Kentucky | Conference USA | 6 | 1 | 46 | 7.6 | 32 | 7.8 | | |
| Navy | American Athletic | 3 | 1 | 51 | 5.6 | 30 | 8.1 | | |
| Penn State | Big Ten | 5 | 2 | 59 | 3.5 | 31 | 8.1 | | |
| Appalachian State | Sun Belt | 4 | 1 | 53 | 4.7 | 29 | 8.3 | | |
| Mississippi State | SEC | 4 | 2 | 23 | 14.1 | 28 | 8.5 | | |
| Brigham Young | Independent | 5 | 2 | 43 | 8.2 | 27 | 9.0 | | |
| Mississippi | SEC | 4 | 2 | 19 | 14.9 | 26 | 9.9 | | 24 |
| Texas A&M | SEC | 5 | 1 | 18 | 15.0 | 25 | 10.0 | | 15 |
| Oklahoma | Big 12 | 5 | 1 | 3 | 22.2 | 24 | 10.1 | | 17 |
| Northwestern | Big Ten | 4 | 2 | 63 | 2.6 | 23 | 10.4 | | |
| Michigan | Big Ten | 5 | 2 | 12 | 17.3 | 21 | 11.2 | | 15 |
| Pittsburgh | ACC | 4 | 1 | 37 | 9.2 | 22 | 11.2 | | 25 |
| Stanford | Pac 12 | 5 | 1 | 8 | 18.5 | 20 | 11.8 | | 10 |
| Washington State | Pac 12 | 4 | 1 | 49 | 6.1 | 19 | 11.9 | | |
| Toledo | Mid-American | 6 | 0 | 48 | 6.5 | 18 | 12.7 | | 19 |
| Notre Dame | Independent | 6 | 1 | 7 | 18.5 | 17 | 12.8 | | 11 |
| Alabama | SEC | 6 | 1 | 2 | 24.1 | 16 | 13.2 | | 8 |
| Houston | American Athletic | 5 | 0 | 31 | 9.6 | 15 | 13.6 | | 21 |
| Florida State | ACC | 6 | 0 | 13 | 16.6 | 14 | 14.2 | | 9 |
| Temple | American Athletic | 6 | 0 | 56 | 3.9 | 13 | 14.7 | | 22 |
| Baylor | Big 12 | 5 | 0 | 1 | 30.9 | 12 | 14.8 | | 2 |
| California | Pac 12 | 4 | 1 | 27 | 12.2 | 11 | 15.3 | | 20 |
| Florida | SEC | 6 | 1 | 11 | 17.9 | 10 | 16.0 | | 13 |
| Oklahoma State | Big 12 | 5 | 0 | 20 | 14.8 | 9 | 16.7 | | 14 |
| Clemson | ACC | 5 | 0 | 5 | 19.3 | 8 | 16.8 | | 6 |
| Ohio State | Big Ten | 7 | 0 | 6 | 18.9 | 7 | 17.2 | | 1 |
| Memphis | American Athletic | 5 | 0 | 35 | 9.5 | 6 | 17.4 | | 18 |
| Texas Christian | Big 12 | 6 | 0 | 10 | 18.5 | 5 | 18.7 | | 4 |
| LSU | SEC | 6 | 0 | 14 | 16.4 | 4 | 20.0 | | 5 |
| Michigan State | Big Ten | 7 | 0 | 29 | 11.2 | 3 | 20.1 | | 7 |
| Utah | Pac 12 | 6 | 0 | 9 | 18.5 | 2 | 20.3 | | 3 |
| Iowa | Big Ten | 6 | 0 | 24 | 13.6 | 1 | 20.5 | | 12 |
College sports ratings use a somewhat less sophisticated version of the NFL model that does not use individual play data. Final scores and game location are the only data used. Unlike BCS computer ratings, point difference is factored rather than simply the outcome of the game. Instead of adjusting ratings for repeatability, both teams in each game are given equal responsibility for the result. Each team is assigned a normal probability distribution for quality such that the most likely scenario considering all games at once is optimized. In doing so, home field advantage is factored where applicable and strength of schedule is automatically accounted for. After 1 game, a team's rating will simply be their net points divided by 2. Past the first game, relative strength of opponents and how far a result is from the expected result begin to factor in. Like the NFL ratings, the first few weeks' ratings are unreliable but quickly become increasingly accurate thereafter. Subtracting one team's rating from another's will give an expected point spread should they play at a neutral site.
