| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| Oklahoma | Big 12 | 8 | 1 | 1 | 26.2 | 20 | 12.2 | 12 | 12 |
| Baylor | Big 12 | 7 | 0 | 2 | 25.6 | 14 | 15.8 | 6 | 4 |
| Clemson | ACC | 8 | 0 | 3 | 24.9 | 2 | 22.7 | 1 | 1 |
| Alabama | SEC | 8 | 1 | 4 | 23.2 | 8 | 17.5 | 2 | 3 |
| Ohio State | Big Ten | 9 | 0 | 5 | 20.3 | 5 | 18.6 | 3 | 2 |
| Notre Dame | Independent | 8 | 1 | 6 | 19.6 | 4 | 20.9 | 4 | 6 |
| USC | Pac 12 | 6 | 3 | 7 | 19.6 | 26 | 9.9 | | |
| Stanford | Pac 12 | 8 | 1 | 8 | 19.2 | 7 | 17.6 | 7 | 7 |
| Texas Christian | Big 12 | 7 | 1 | 9 | 19.0 | 9 | 16.5 | 15 | 13 |
| Oklahoma State | Big 12 | 8 | 0 | 10 | 18.9 | 3 | 21.5 | 8 | 5 |
| Tennessee | SEC | 4 | 4 | 11 | 17.9 | 40 | 5.3 | | |
| LSU | SEC | 7 | 1 | 12 | 17.7 | 6 | 18.0 | 9 | 9 |
| Mississippi State | SEC | 6 | 2 | 13 | 17.4 | 22 | 10.7 | 17 | 20 |
| Florida | SEC | 8 | 1 | 14 | 17.4 | 10 | 16.4 | 11 | 11 |
| North Carolina | ACC | 6 | 1 | 15 | 17.2 | 27 | 9.7 | 23 | 17 |
| Michigan | Big Ten | 7 | 2 | 16 | 16.6 | 19 | 12.4 | 14 | 15 |
| Utah | Pac 12 | 8 | 1 | 17 | 15.8 | 12 | 16.2 | 10 | 10 |
| Florida State | ACC | 7 | 2 | 18 | 15.6 | 31 | 8.0 | 16 | 19 |
| Mississippi | SEC | 6 | 3 | 19 | 15.5 | 23 | 10.5 | | |
| UCLA | Pac 12 | 7 | 2 | 20 | 14.0 | 28 | 9.2 | 19 | 18 |
| Houston | American Athletic | 8 | 0 | 21 | 13.9 | 13 | 15.9 | 24 | 16 |
| Iowa | Big Ten | 8 | 0 | 22 | 13.4 | 1 | 22.7 | 5 | 8 |
| Georgia | SEC | 5 | 3 | 23 | 13.2 | 42 | 4.9 | | |
| Washington | Pac 12 | 3 | 5 | 24 | 13.0 | 57 | 1.7 | | |
| West Virginia | Big 12 | 3 | 4 | 25 | 12.8 | 44 | 4.6 | | |
| Wisconsin | Big Ten | 8 | 2 | 26 | 12.6 | 21 | 10.8 | 25 | 23 |
| Michigan State | Big Ten | 8 | 1 | 27 | 12.5 | 16 | 14.9 | 13 | 14 |
| Boise State | Mountain West | 6 | 2 | 28 | 12.3 | 39 | 5.4 | | |
| Oregon | Pac 12 | 5 | 3 | 29 | 10.9 | 33 | 7.8 | | |
| Auburn | SEC | 4 | 4 | 30 | 10.8 | 41 | 5.2 | | |
| Texas A&M | SEC | 6 | 3 | 31 | 10.8 | 35 | 7.0 | | |
| Arkansas | SEC | 4 | 4 | 32 | 10.7 | 43 | 4.8 | | |
| California | Pac 12 | 4 | 4 | 33 | 10.1 | 37 | 6.8 | | |
| North Carolina State | ACC | 5 | 3 | 34 | 10.0 | 58 | 1.5 | | |
| Georgia Tech | ACC | 2 | 6 | 35 | 9.8 | 85 | -4.3 | | |
| Navy | American Athletic | 6 | 1 | 36 | 8.6 | 11 | 16.2 | 20 | 22 |
| Louisville | ACC | 4 | 4 | 37 | 8.6 | 51 | 2.5 | | |
| Pittsburgh | ACC | 5 | 3 | 38 | 8.3 | 34 | 7.5 | | |
| Texas Tech | Big 12 | 4 | 5 | 39 | 8.2 | 48 | 3.0 | | |
| Memphis | American Athletic | 7 | 1 | 40 | 8.1 | 15 | 15.4 | 21 | 25 |
| Virginia Tech | ACC | 3 | 5 | 41 | 7.9 | 81 | -3.4 | | |
| Bowling Green State | Mid-American | 7 | 2 | 42 | 7.6 | 36 | 7.0 | | |
| Washington State | Pac 12 | 6 | 2 | 43 | 7.4 | 24 | 10.3 | | |
| Brigham Young | Independent | 6 | 2 | 44 | 6.5 | 25 | 10.2 | | |
| Nebraska | Big Ten | 4 | 6 | 45 | 6.4 | 64 | -0.2 | | |
| Temple | American Athletic | 8 | 1 | 46 | 6.4 | 18 | 13.2 | 22 | 21 |
| Penn State | Big Ten | 7 | 3 | 47 | 6.4 | 29 | 8.8 | | |
| Duke | ACC | 5 | 3 | 48 | 6.2 | 52 | 2.4 | | |
| Arizona State | Pac 12 | 3 | 5 | 49 | 6.2 | 63 | 0.7 | | |
| Western Kentucky | Conference USA | 8 | 2 | 50 | 5.4 | 30 | 8.0 | | |
| Kansas State | Big 12 | 2 | 5 | 51 | 5.3 | 75 | -2.2 | | |
| Cincinnati | American Athletic | 4 | 4 | 52 | 5.0 | 50 | 2.7 | | |
| Miami (Fla.) | ACC | 5 | 3 | 53 | 5.0 | 38 | 5.8 | | |
| Toledo | Mid-American | 7 | 1 | 54 | 4.9 | 32 | 7.8 | | |
| Louisiana Tech | Conference USA | 6 | 3 | 55 | 4.7 | 53 | 2.2 | | |
| South Carolina | SEC | 3 | 6 | 56 | 4.3 | 80 | -3.1 | | |
| Texas | Big 12 | 4 | 5 | 57 | 4.3 | 54 | 2.2 | | |
| Missouri | SEC | 3 | 5 | 58 | 3.7 | 70 | -1.5 | | |
| Northwestern | Big Ten | 6 | 2 | 59 | 3.4 | 17 | 14.1 | 18 | 24 |
| Utah State | Mountain West | 4 | 4 | 60 | 2.5 | 73 | -1.7 | | |
| Virginia | ACC | 2 | 6 | 61 | 1.7 | 84 | -4.3 | | |
| Illinois | Big Ten | 4 | 4 | 62 | 1.6 | 56 | 2.1 | | |
| Arizona | Pac 12 | 4 | 5 | 63 | 1.5 | 69 | -1.1 | | |
| Northern Illinois | Mid-American | 5 | 3 | 64 | 1.3 | 62 | 0.7 | | |
| Appalachian State | Sun Belt | 6 | 2 | 65 | 1.3 | 45 | 4.6 | | |
| Vanderbilt | SEC | 2 | 6 | 66 | 1.3 | 82 | -3.8 | | |
| Western Michigan | Mid-American | 5 | 3 | 67 | 1.2 | 46 | 3.8 | | |
| South Florida | American Athletic | 4 | 4 | 68 | 0.8 | 60 | 1.4 | | |
| Kentucky | SEC | 3 | 5 | 69 | 0.5 | 74 | -1.8 | | |
| Boston College | ACC | 1 | 7 | 70 | 0.2 | 110 | -12.8 | | |
| Central Michigan | Mid-American | 4 | 4 | 71 | 0.1 | 59 | 1.5 | | |
| San Diego State | Mountain West | 5 | 3 | 72 | -0.2 | 61 | 0.8 | | |
| East Carolina | American Athletic | 3 | 6 | 73 | -0.6 | 78 | -3.0 | | |
| Air Force | Mountain West | 5 | 3 | 74 | -0.7 | 68 | -1.0 | | |
| Iowa State | Big 12 | 2 | 6 | 75 | -0.9 | 77 | -2.5 | | |
| Minnesota | Big Ten | 4 | 5 | 76 | -1.0 | 66 | -0.3 | | |
| Indiana | Big Ten | 3 | 5 | 77 | -1.0 | 65 | -0.3 | | |
| Maryland | Big Ten | 1 | 7 | 78 | -1.9 | 90 | -6.2 | | |
| Marshall | Conference USA | 7 | 2 | 79 | -2.3 | 55 | 2.1 | | |
| Syracuse | ACC | 2 | 6 | 80 | -2.6 | 89 | -6.0 | | |
| Georgia Southern | Sun Belt | 5 | 2 | 81 | -3.4 | 47 | 3.0 | | |
| Middle Tennessee State | Conference USA | 3 | 5 | 82 | -4.5 | 86 | -4.7 | | |
| Wake Forest | ACC | 2 | 6 | 83 | -4.8 | 100 | -10.0 | | |
| Southern Mississippi | Conference USA | 5 | 3 | 84 | -4.9 | 72 | -1.7 | | |
| Colorado | Pac 12 | 3 | 6 | 85 | -4.9 | 96 | -8.0 | | |
| Connecticut | American Athletic | 4 | 5 | 86 | -5.0 | 83 | -4.0 | | |
| Tulsa | American Athletic | 5 | 4 | 87 | -6.8 | 67 | -0.6 | | |
| Rutgers | Big Ten | 2 | 6 | 88 | -7.0 | 76 | -2.2 | | |
| Arkansas State | Sun Belt | 5 | 3 | 89 | -7.6 | 49 | 2.9 | | |
| Colorado State | Mountain West | 3 | 5 | 90 | -7.9 | 97 | -8.5 | | |
| Oregon State | Pac 12 | 1 | 7 | 91 | -8.2 | 102 | -10.8 | | |
| Purdue | Big Ten | 1 | 7 | 92 | -8.3 | 105 | -11.3 | | |
| Troy | Sun Belt | 2 | 6 | 93 | -8.9 | 108 | -12.5 | | |
| San Jose State | Mountain West | 3 | 5 | 94 | -9.5 | 94 | -7.1 | | |
| Florida International | Conference USA | 4 | 5 | 95 | -9.9 | 99 | -9.8 | | |
| Buffalo | Mid-American | 4 | 4 | 96 | -10.1 | 79 | -3.1 | | |
| Nevada | Mountain West | 4 | 4 | 97 | -10.6 | 93 | -7.1 | | |
| Akron | Mid-American | 3 | 5 | 98 | -11.2 | 88 | -5.9 | | |
| Ohio U. | Mid-American | 4 | 4 | 99 | -11.8 | 71 | -1.6 | | |
| Nevada-Las Vegas | Mountain West | 2 | 6 | 100 | -12.4 | 103 | -10.8 | | |
| Army | Independent | 1 | 6 | 101 | -12.9 | 119 | -15.5 | | |
| Louisiana-Lafayette | Sun Belt | 3 | 4 | 102 | -14.0 | 95 | -7.6 | | |
| Southern Methodist | American Athletic | 1 | 7 | 103 | -14.0 | 109 | -12.6 | | |
| Ball State | Mid-American | 2 | 7 | 104 | -15.4 | 111 | -12.9 | | |
| Rice | Conference USA | 3 | 5 | 105 | -15.6 | 92 | -7.0 | | |
| New Mexico | Mountain West | 4 | 4 | 106 | -15.7 | 91 | -6.6 | | |
| Florida Atlantic | Conference USA | 2 | 7 | 107 | -15.7 | 112 | -13.3 | | |
| Massachusetts | Mid-American | 1 | 8 | 108 | -16.3 | 123 | -17.0 | | |
| Central Florida | American Athletic | 0 | 9 | 109 | -16.7 | 127 | -20.8 | | |
| Texas-San Antonio | Conference USA | 1 | 8 | 110 | -17.2 | 124 | -17.3 | | |
| Wyoming | Mountain West | 1 | 8 | 111 | -18.0 | 125 | -18.5 | | |
| Tulane | American Athletic | 1 | 7 | 112 | -18.1 | 113 | -13.5 | | |
| South Alabama | Sun Belt | 3 | 4 | 113 | -18.8 | 87 | -5.5 | | |
| Kent State | Mid-American | 2 | 6 | 114 | -19.8 | 104 | -10.9 | | |
| Kansas | Big 12 | 0 | 8 | 115 | -20.0 | 117 | -14.7 | | |
| Hawaii | Mountain West | 1 | 8 | 116 | -20.0 | 116 | -14.7 | | |
| Texas State | Sun Belt | 1 | 6 | 117 | -20.4 | 114 | -14.3 | | |
| Fresno State | Mountain West | 1 | 7 | 118 | -20.5 | 115 | -14.6 | | |
| Idaho | Sun Belt | 2 | 6 | 119 | -21.4 | 107 | -12.4 | | |
| Georgia State | Sun Belt | 2 | 5 | 120 | -21.8 | 106 | -12.0 | | |
| Miami (Ohio) | Mid-American | 1 | 8 | 121 | -22.8 | 122 | -16.7 | | |
| Louisiana-Monroe | Sun Belt | 0 | 8 | 122 | -23.1 | 126 | -19.8 | | |
| Old Dominion | Conference USA | 3 | 5 | 123 | -23.5 | 98 | -9.4 | | |
| Texas-El Paso | Conference USA | 3 | 5 | 124 | -23.7 | 101 | -10.2 | | |
| North Texas | Conference USA | 1 | 7 | 125 | -24.3 | 120 | -15.6 | | |
| Eastern Michigan | Mid-American | 1 | 9 | 126 | -25.5 | 128 | -21.7 | | |
| New Mexico State | Sun Belt | 2 | 7 | 127 | -26.3 | 118 | -15.3 | | |
| North Carolina-Charlotte | Conference USA | 1 | 7 | 128 | -30.4 | 121 | -16.7 | | |
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.
