| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| Clemson | ACC | 5 | 0 | 5 | 19.3 | 8 | 16.8 | | 6 |
| Florida State | ACC | 6 | 0 | 13 | 16.6 | 14 | 14.2 | | 9 |
| Pittsburgh | ACC | 4 | 1 | 37 | 9.2 | 22 | 11.2 | | 25 |
| Duke | ACC | 4 | 1 | 40 | 8.9 | 40 | 4.8 | | 23 |
| North Carolina | ACC | 3 | 1 | 21 | 14.7 | 43 | 4.1 | | |
| Miami (Fla.) | ACC | 3 | 2 | 33 | 9.6 | 52 | 3.0 | | |
| North Carolina State | ACC | 3 | 2 | 47 | 6.6 | 68 | -1.5 | | |
| Louisville | ACC | 1 | 4 | 45 | 7.8 | 72 | -1.8 | | |
| Virginia Tech | ACC | 2 | 4 | 44 | 8.0 | 76 | -3.0 | | |
| Syracuse | ACC | 2 | 3 | 78 | -2.4 | 77 | -3.3 | | |
| Wake Forest | ACC | 2 | 4 | 83 | -4.8 | 82 | -4.6 | | |
| Virginia | ACC | 1 | 4 | 72 | -0.6 | 87 | -5.3 | | |
| Boston College | ACC | 1 | 4 | 64 | 1.5 | 95 | -7.4 | | |
| Georgia Tech | ACC | 1 | 5 | 39 | 9.0 | 96 | -7.5 | | |
| Memphis | American Athletic | 5 | 0 | 35 | 9.5 | 6 | 17.4 | | 18 |
| Temple | American Athletic | 6 | 0 | 56 | 3.9 | 13 | 14.7 | | 22 |
| Houston | American Athletic | 5 | 0 | 31 | 9.6 | 15 | 13.6 | | 21 |
| Navy | American Athletic | 3 | 1 | 51 | 5.6 | 30 | 8.1 | | |
| East Carolina | American Athletic | 3 | 3 | 58 | 3.7 | 48 | 3.7 | | |
| Cincinnati | American Athletic | 2 | 3 | 68 | -0.1 | 60 | 1.4 | | |
| Tulsa | American Athletic | 3 | 3 | 86 | -6.2 | 65 | -0.5 | | |
| South Florida | American Athletic | 2 | 3 | 73 | -0.9 | 67 | -0.9 | | |
| Southern Methodist | American Athletic | 1 | 4 | 96 | -11.4 | 92 | -6.9 | | |
| Connecticut | American Athletic | 2 | 4 | 82 | -4.7 | 97 | -7.7 | | |
| Tulane | American Athletic | 1 | 4 | 119 | -21.0 | 104 | -10.6 | | |
| Central Florida | American Athletic | 0 | 6 | 99 | -12.0 | 127 | -20.3 | | |
| Texas Christian | Big 12 | 6 | 0 | 10 | 18.5 | 5 | 18.7 | | 4 |
| Oklahoma State | Big 12 | 5 | 0 | 20 | 14.8 | 9 | 16.7 | | 14 |
| Baylor | Big 12 | 5 | 0 | 1 | 30.9 | 12 | 14.8 | | 2 |
| Oklahoma | Big 12 | 5 | 1 | 3 | 22.2 | 24 | 10.1 | | 17 |
| Texas Tech | Big 12 | 4 | 2 | 28 | 11.2 | 36 | 5.7 | | |
| Texas | Big 12 | 2 | 4 | 55 | 4.0 | 47 | 3.7 | | |
| West Virginia | Big 12 | 2 | 3 | 16 | 15.5 | 54 | 2.7 | | |
| Kansas State | Big 12 | 2 | 3 | 54 | 4.0 | 63 | 0.3 | | |
| Iowa State | Big 12 | 1 | 4 | 80 | -4.0 | 80 | -4.5 | | |
| Kansas | Big 12 | 0 | 5 | 106 | -14.2 | 116 | -12.8 | | |
| Iowa | Big Ten | 6 | 0 | 24 | 13.6 | 1 | 20.5 | | 12 |
| Michigan State | Big Ten | 7 | 0 | 29 | 11.2 | 3 | 20.1 | | 7 |
| Ohio State | Big Ten | 7 | 0 | 6 | 18.9 | 7 | 17.2 | | 1 |
| Michigan | Big Ten | 5 | 2 | 12 | 17.3 | 21 | 11.2 | | 15 |
| Northwestern | Big Ten | 4 | 2 | 63 | 2.6 | 23 | 10.4 | | |
| Penn State | Big Ten | 5 | 2 | 59 | 3.5 | 31 | 8.1 | | |
| Wisconsin | Big Ten | 5 | 2 | 30 | 10.5 | 41 | 4.7 | | |
| Illinois | Big Ten | 3 | 2 | 61 | 3.3 | 46 | 3.8 | | |
| Minnesota | Big Ten | 4 | 3 | 77 | -2.4 | 56 | 1.8 | | |
| Indiana | Big Ten | 3 | 3 | 67 | 0.4 | 57 | 1.7 | | |
| Rutgers | Big Ten | 2 | 3 | 74 | -1.3 | 61 | 1.4 | | |
| Nebraska | Big Ten | 3 | 4 | 32 | 9.6 | 66 | -0.9 | | |
| Maryland | Big Ten | 1 | 4 | 81 | -4.5 | 88 | -5.4 | | |
| Purdue | Big Ten | 0 | 6 | 92 | -8.4 | 121 | -15.6 | | |
| Western Kentucky | Conference USA | 6 | 1 | 46 | 7.6 | 32 | 7.8 | | |
| Marshall | Conference USA | 5 | 1 | 71 | -0.3 | 35 | 6.2 | | |
| Louisiana Tech | Conference USA | 3 | 3 | 66 | 0.8 | 70 | -1.6 | | |
| Rice | Conference USA | 2 | 3 | 104 | -13.3 | 74 | -2.5 | | |
| Southern Mississippi | Conference USA | 3 | 3 | 85 | -5.7 | 79 | -3.8 | | |
| Old Dominion | Conference USA | 2 | 3 | 122 | -23.3 | 90 | -6.4 | | |
| Middle Tennessee State | Conference USA | 2 | 4 | 75 | -1.9 | 94 | -7.3 | | |
| Florida International | Conference USA | 2 | 4 | 91 | -8.2 | 106 | -10.7 | | |
| North Carolina-Charlotte | Conference USA | 1 | 4 | 128 | -29.8 | 113 | -12.1 | | |
| 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 | | |
| Texas-El Paso | Conference USA | 1 | 4 | 126 | -26.2 | 120 | -14.9 | | |
| North Texas | Conference USA | 0 | 5 | 124 | -24.7 | 122 | -15.8 | | |
| Notre Dame | Independent | 6 | 1 | 7 | 18.5 | 17 | 12.8 | | 11 |
| Brigham Young | Independent | 5 | 2 | 43 | 8.2 | 27 | 9.0 | | |
| Army | Independent | 1 | 4 | 97 | -11.6 | 111 | -11.8 | | |
| Toledo | Mid-American | 6 | 0 | 48 | 6.5 | 18 | 12.7 | | 19 |
| Western Michigan | Mid-American | 2 | 3 | 79 | -2.5 | 44 | 3.8 | | |
| Bowling Green State | Mid-American | 5 | 2 | 62 | 2.7 | 49 | 3.5 | | |
| Ohio U. | Mid-American | 4 | 2 | 93 | -8.5 | 51 | 3.1 | | |
| Central Michigan | Mid-American | 2 | 4 | 70 | -0.3 | 78 | -3.8 | | |
| Northern Illinois | Mid-American | 3 | 3 | 69 | -0.1 | 81 | -4.6 | | |
| Akron | Mid-American | 2 | 4 | 98 | -11.7 | 84 | -4.7 | | |
| Kent State | Mid-American | 2 | 4 | 112 | -17.2 | 85 | -5.1 | | |
| Ball State | Mid-American | 1 | 5 | 105 | -13.3 | 109 | -11.4 | | |
| Massachusetts | Mid-American | 1 | 5 | 108 | -16.0 | 110 | -11.6 | | |
| Buffalo | Mid-American | 1 | 4 | 102 | -12.7 | 112 | -11.9 | | |
| Miami (Ohio) | Mid-American | 0 | 6 | 125 | -25.2 | 124 | -16.7 | | |
| Eastern Michigan | Mid-American | 1 | 6 | 123 | -23.7 | 125 | -17.7 | | |
| Boise State | Mountain West | 4 | 2 | 22 | 14.6 | 38 | 5.3 | | |
| Utah State | Mountain West | 3 | 2 | 36 | 9.4 | 42 | 4.5 | | |
| San Diego State | Mountain West | 3 | 3 | 88 | -6.5 | 71 | -1.6 | | |
| Air Force | Mountain West | 2 | 3 | 90 | -7.2 | 83 | -4.6 | | |
| New Mexico | Mountain West | 3 | 3 | 111 | -16.8 | 93 | -7.3 | | |
| Colorado State | Mountain West | 2 | 4 | 89 | -6.6 | 98 | -7.7 | | |
| San Jose State | Mountain West | 2 | 4 | 101 | -12.5 | 100 | -8.2 | | |
| Hawaii | Mountain West | 1 | 5 | 109 | -16.1 | 102 | -10.2 | | |
| Fresno State | Mountain West | 1 | 5 | 116 | -19.1 | 107 | -10.7 | | |
| Nevada | Mountain West | 2 | 4 | 95 | -10.8 | 108 | -10.8 | | |
| Nevada-Las Vegas | Mountain West | 1 | 5 | 103 | -13.1 | 115 | -12.6 | | |
| Wyoming | Mountain West | 1 | 5 | 113 | -17.8 | 123 | -16.0 | | |
| Utah | Pac 12 | 6 | 0 | 9 | 18.5 | 2 | 20.3 | | 3 |
| California | Pac 12 | 4 | 1 | 27 | 12.2 | 11 | 15.3 | | 20 |
| Washington State | Pac 12 | 4 | 1 | 49 | 6.1 | 19 | 11.9 | | |
| Stanford | Pac 12 | 5 | 1 | 8 | 18.5 | 20 | 11.8 | | 10 |
| UCLA | Pac 12 | 4 | 2 | 25 | 12.8 | 34 | 6.2 | | |
| Oregon | Pac 12 | 3 | 3 | 41 | 8.7 | 39 | 4.8 | | |
| Arizona | Pac 12 | 4 | 2 | 57 | 3.8 | 53 | 2.8 | | |
| Arizona State | Pac 12 | 3 | 3 | 42 | 8.4 | 55 | 2.2 | | |
| Washington | Pac 12 | 2 | 3 | 26 | 12.6 | 59 | 1.5 | | |
| USC | Pac 12 | 3 | 3 | 4 | 19.5 | 62 | 1.1 | | |
| Oregon State | Pac 12 | 1 | 4 | 87 | -6.5 | 86 | -5.2 | | |
| Colorado | Pac 12 | 2 | 4 | 84 | -5.4 | 101 | -8.2 | | |
| LSU | SEC | 6 | 0 | 14 | 16.4 | 4 | 20.0 | | 5 |
| Florida | SEC | 6 | 1 | 11 | 17.9 | 10 | 16.0 | | 13 |
| Alabama | SEC | 6 | 1 | 2 | 24.1 | 16 | 13.2 | | 8 |
| Texas A&M | SEC | 5 | 1 | 18 | 15.0 | 25 | 10.0 | | 15 |
| Mississippi | SEC | 4 | 2 | 19 | 14.9 | 26 | 9.9 | | 24 |
| Mississippi State | SEC | 4 | 2 | 23 | 14.1 | 28 | 8.5 | | |
| Auburn | SEC | 3 | 2 | 38 | 9.1 | 33 | 6.2 | | |
| Georgia | SEC | 4 | 2 | 17 | 15.2 | 45 | 3.8 | | |
| Kentucky | SEC | 3 | 2 | 52 | 5.0 | 50 | 3.4 | | |
| Missouri | SEC | 3 | 3 | 50 | 5.8 | 58 | 1.6 | | |
| Tennessee | SEC | 2 | 3 | 15 | 16.0 | 64 | 0.2 | | |
| South Carolina | SEC | 3 | 4 | 60 | 3.5 | 69 | -1.5 | | |
| Arkansas | SEC | 2 | 4 | 34 | 9.6 | 73 | -1.9 | | |
| Vanderbilt | SEC | 1 | 4 | 65 | 1.2 | 91 | -6.7 | | |
| Appalachian State | Sun Belt | 4 | 1 | 53 | 4.7 | 29 | 8.3 | | |
| Georgia Southern | Sun Belt | 4 | 1 | 76 | -2.3 | 37 | 5.6 | | |
| Arkansas State | Sun Belt | 2 | 3 | 94 | -10.4 | 75 | -2.9 | | |
| South Alabama | Sun Belt | 2 | 3 | 117 | -19.3 | 89 | -5.9 | | |
| Georgia State | Sun Belt | 2 | 3 | 120 | -22.1 | 99 | -7.9 | | |
| Idaho | Sun Belt | 1 | 4 | 121 | -22.5 | 103 | -10.3 | | |
| Louisiana-Lafayette | Sun Belt | 1 | 3 | 100 | -12.4 | 105 | -10.7 | | |
| Louisiana-Monroe | Sun Belt | 0 | 5 | 115 | -19.0 | 114 | -12.4 | | |
| Texas State | Sun Belt | 0 | 4 | 118 | -19.7 | 119 | -14.9 | | |
| Troy | Sun Belt | 0 | 5 | 114 | -18.8 | 126 | -18.4 | | |
| New Mexico State | Sun Belt | 0 | 6 | 127 | -26.3 | 128 | -20.6 | | |
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.
