| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| North Carolina-Charlotte | Conference USA | 1 | 6 | 128 | -31.6 | 121 | -15.2 | | |
| New Mexico State | Sun Belt | 1 | 7 | 127 | -28.5 | 126 | -19.4 | | |
| Old Dominion | Conference USA | 2 | 5 | 126 | -24.9 | 105 | -10.7 | | |
| Texas-El Paso | Conference USA | 2 | 5 | 125 | -24.9 | 114 | -13.2 | | |
| Eastern Michigan | Mid-American | 1 | 8 | 124 | -24.6 | 127 | -20.1 | | |
| Miami (Ohio) | Mid-American | 0 | 8 | 123 | -24.0 | 125 | -19.4 | | |
| North Texas | Conference USA | 1 | 6 | 122 | -22.8 | 117 | -14.1 | | |
| Georgia State | Sun Belt | 2 | 4 | 121 | -22.2 | 97 | -9.3 | | |
| Idaho | Sun Belt | 2 | 5 | 120 | -21.5 | 110 | -12.2 | | |
| Kent State | Mid-American | 2 | 5 | 119 | -20.8 | 93 | -8.1 | | |
| Louisiana-Monroe | Sun Belt | 0 | 7 | 118 | -20.6 | 124 | -17.9 | | |
| Fresno State | Mountain West | 1 | 6 | 117 | -19.8 | 108 | -11.8 | | |
| South Alabama | Sun Belt | 2 | 4 | 116 | -19.4 | 91 | -7.3 | | |
| Hawaii | Mountain West | 1 | 7 | 115 | -19.2 | 116 | -13.5 | | |
| Tulane | American Athletic | 1 | 6 | 114 | -18.5 | 102 | -10.5 | | |
| Kansas | Big 12 | 0 | 7 | 113 | -18.2 | 115 | -13.5 | | |
| Texas State | Sun Belt | 1 | 5 | 112 | -17.8 | 103 | -10.5 | | |
| New Mexico | Mountain West | 3 | 4 | 111 | -17.6 | 98 | -9.4 | | |
| Central Florida | American Athletic | 0 | 8 | 110 | -16.8 | 128 | -20.5 | | |
| Wyoming | Mountain West | 1 | 7 | 109 | -16.6 | 123 | -16.9 | | |
| Florida Atlantic | Conference USA | 2 | 6 | 108 | -16.6 | 113 | -13.1 | | |
| Texas-San Antonio | Conference USA | 1 | 7 | 107 | -16.3 | 122 | -15.7 | | |
| Massachusetts | Mid-American | 1 | 7 | 106 | -15.8 | 119 | -14.5 | | |
| Rice | Conference USA | 3 | 4 | 105 | -14.6 | 82 | -4.1 | | |
| Nevada-Las Vegas | Mountain West | 1 | 6 | 104 | -14.0 | 112 | -12.8 | | |
| Louisiana-Lafayette | Sun Belt | 2 | 4 | 103 | -13.4 | 101 | -10.3 | | |
| Southern Methodist | American Athletic | 1 | 6 | 102 | -12.9 | 109 | -11.9 | | |
| Ball State | Mid-American | 2 | 6 | 101 | -12.4 | 107 | -11.6 | | |
| Army | Independent | 1 | 5 | 100 | -12.2 | 118 | -14.4 | | |
| Nevada | Mountain West | 3 | 4 | 99 | -11.4 | 95 | -9.1 | | |
| Akron | Mid-American | 2 | 5 | 98 | -11.3 | 92 | -7.7 | | |
| Troy | Sun Belt | 1 | 6 | 97 | -11.3 | 120 | -15.0 | | |
| San Jose State | Mountain West | 3 | 4 | 96 | -11.2 | 89 | -6.8 | | |
| Ohio U. | Mid-American | 4 | 3 | 95 | -10.6 | 67 | -0.7 | | |
| Arkansas State | Sun Belt | 4 | 3 | 94 | -10.1 | 63 | -0.4 | | |
| Buffalo | Mid-American | 3 | 4 | 93 | -9.9 | 86 | -5.4 | | |
| Florida International | Conference USA | 3 | 5 | 92 | -9.7 | 106 | -11.2 | | |
| Colorado State | Mountain West | 2 | 5 | 91 | -8.9 | 96 | -9.3 | | |
| Tulsa | American Athletic | 4 | 4 | 90 | -6.4 | 66 | -0.6 | | |
| Oregon State | Pac 12 | 1 | 6 | 89 | -6.4 | 99 | -9.7 | | |
| Rutgers | Big Ten | 2 | 5 | 88 | -6.1 | 70 | -1.1 | | |
| Middle Tennessee State | Conference USA | 2 | 5 | 87 | -5.5 | 94 | -8.7 | | |
| Purdue | Big Ten | 1 | 6 | 86 | -5.3 | 104 | -10.5 | | |
| Wake Forest | ACC | 2 | 6 | 85 | -5.2 | 100 | -10.0 | | |
| Southern Mississippi | Conference USA | 5 | 3 | 84 | -4.7 | 75 | -1.4 | | |
| Connecticut | American Athletic | 3 | 5 | 83 | -4.6 | 88 | -6.0 | | |
| Colorado | Pac 12 | 3 | 5 | 82 | -4.0 | 90 | -7.3 | | |
| Georgia Southern | Sun Belt | 5 | 2 | 81 | -3.0 | 44 | 3.7 | | |
| Maryland | Big Ten | 1 | 6 | 80 | -2.4 | 87 | -5.9 | | |
| Illinois | Big Ten | 3 | 4 | 79 | -2.0 | 64 | -0.4 | | |
| Marshall | Conference USA | 7 | 1 | 78 | -1.9 | 39 | 6.2 | | |
| Syracuse | ACC | 2 | 5 | 77 | -1.7 | 85 | -5.0 | | |
| Minnesota | Big Ten | 4 | 4 | 76 | -1.7 | 61 | -0.4 | | |
| Western Michigan | Mid-American | 4 | 3 | 75 | -1.5 | 42 | 4.2 | | |
| Air Force | Mountain West | 4 | 3 | 74 | -1.2 | 73 | -1.3 | | |
| Indiana | Big Ten | 3 | 4 | 73 | -1.1 | 59 | 0.6 | | |
| Vanderbilt | SEC | 2 | 5 | 72 | -0.7 | 81 | -4.0 | | |
| San Diego State | Mountain West | 5 | 3 | 71 | 0.0 | 56 | 1.3 | | |
| Central Michigan | Mid-American | 4 | 4 | 70 | 0.0 | 58 | 0.8 | | |
| South Florida | American Athletic | 3 | 4 | 69 | 0.2 | 72 | -1.2 | | |
| Arizona | Pac 12 | 4 | 4 | 68 | 0.2 | 62 | -0.4 | | |
| East Carolina | American Athletic | 3 | 5 | 67 | 0.2 | 74 | -1.3 | | |
| Northern Illinois | Mid-American | 4 | 3 | 66 | 0.3 | 84 | -4.8 | | |
| Iowa State | Big 12 | 2 | 5 | 65 | 0.3 | 68 | -1.0 | | |
| Virginia | ACC | 2 | 5 | 64 | 1.0 | 78 | -3.1 | | |
| Kentucky | SEC | 3 | 4 | 63 | 1.3 | 76 | -1.5 | | |
| Boston College | ACC | 1 | 6 | 62 | 1.4 | 111 | -12.8 | | |
| South Carolina | SEC | 3 | 5 | 61 | 2.7 | 77 | -2.1 | | |
| Texas | Big 12 | 3 | 5 | 60 | 3.2 | 50 | 2.4 | | |
| Northwestern | Big Ten | 5 | 2 | 59 | 3.5 | 20 | 12.1 | 21 | |
| Louisiana Tech | Conference USA | 5 | 3 | 58 | 3.7 | 54 | 1.8 | | |
| Kansas State | Big 12 | 2 | 4 | 57 | 3.9 | 69 | -1.1 | | |
| Appalachian State | Sun Belt | 6 | 1 | 56 | 4.1 | 24 | 10.1 | | |
| Missouri | SEC | 3 | 4 | 55 | 4.1 | 71 | -1.1 | | |
| Cincinnati | American Athletic | 4 | 3 | 54 | 4.3 | 49 | 2.9 | | |
| Utah State | Mountain West | 4 | 3 | 53 | 4.5 | 53 | 1.8 | | |
| Navy | American Athletic | 5 | 1 | 52 | 5.1 | 22 | 10.5 | | |
| Miami (Fla.) | ACC | 4 | 3 | 51 | 5.2 | 41 | 4.7 | | |
| Western Kentucky | Conference USA | 7 | 2 | 50 | 5.8 | 36 | 8.1 | | |
| Temple | American Athletic | 7 | 1 | 49 | 5.9 | 18 | 13.0 | 22 | 23 |
| Nebraska | Big Ten | 3 | 6 | 48 | 6.1 | 83 | -4.3 | | |
| Penn State | Big Ten | 7 | 2 | 47 | 6.4 | 25 | 10.0 | | |
| Toledo | Mid-American | 7 | 0 | 46 | 6.4 | 17 | 14.2 | 24 | 20 |
| Washington State | Pac 12 | 5 | 2 | 45 | 6.5 | 27 | 9.6 | | |
| Bowling Green State | Mid-American | 6 | 2 | 44 | 6.8 | 38 | 6.3 | | |
| Arizona State | Pac 12 | 3 | 4 | 43 | 7.0 | 57 | 1.3 | | |
| Louisville | ACC | 3 | 4 | 42 | 7.4 | 60 | 0.4 | | |
| Brigham Young | Independent | 5 | 2 | 41 | 7.5 | 29 | 8.9 | | |
| Texas Tech | Big 12 | 4 | 4 | 40 | 8.1 | 43 | 4.1 | | |
| North Carolina State | ACC | 4 | 3 | 39 | 8.4 | 65 | -0.5 | | |
| Auburn | SEC | 3 | 4 | 38 | 8.4 | 52 | 1.8 | | |
| Pittsburgh | ACC | 5 | 2 | 37 | 8.4 | 32 | 8.6 | | |
| Virginia Tech | ACC | 3 | 5 | 36 | 8.6 | 79 | -3.2 | | |
| Duke | ACC | 5 | 2 | 35 | 8.7 | 45 | 3.6 | | |
| Georgia Tech | ACC | 2 | 6 | 34 | 9.6 | 80 | -3.7 | | |
| Oregon | Pac 12 | 4 | 3 | 33 | 9.8 | 37 | 6.7 | | |
| Arkansas | SEC | 3 | 4 | 32 | 9.8 | 55 | 1.4 | | |
| California | Pac 12 | 4 | 3 | 31 | 11.2 | 34 | 8.3 | | |
| Memphis | American Athletic | 7 | 0 | 30 | 11.2 | 5 | 20.1 | 13 | 15 |
| UCLA | Pac 12 | 6 | 2 | 29 | 11.8 | 31 | 8.7 | 23 | 22 |
| Wisconsin | Big Ten | 7 | 2 | 28 | 12.7 | 33 | 8.5 | | |
| Georgia | SEC | 4 | 3 | 27 | 12.7 | 47 | 3.4 | | |
| Boise State | Mountain West | 6 | 2 | 26 | 12.7 | 40 | 6.0 | | |
| Michigan State | Big Ten | 8 | 0 | 25 | 12.7 | 3 | 21.0 | 7 | 6 |
| Texas A&M | SEC | 6 | 2 | 24 | 12.7 | 23 | 10.2 | 19 | 25 |
| West Virginia | Big 12 | 2 | 4 | 23 | 13.4 | 51 | 2.2 | | |
| Iowa | Big Ten | 7 | 0 | 22 | 13.6 | 2 | 21.3 | 9 | 10 |
| North Carolina | ACC | 5 | 1 | 21 | 14.0 | 30 | 8.8 | | 21 |
| Washington | Pac 12 | 3 | 4 | 20 | 14.4 | 48 | 3.1 | | |
| Houston | American Athletic | 7 | 0 | 19 | 14.9 | 15 | 14.6 | 25 | 18 |
| Utah | Pac 12 | 7 | 1 | 18 | 15.2 | 13 | 15.2 | 12 | 13 |
| Florida State | ACC | 7 | 1 | 17 | 15.6 | 35 | 8.2 | 16 | 17 |
| Michigan | Big Ten | 6 | 2 | 16 | 16.1 | 19 | 12.2 | 17 | 16 |
| Mississippi State | SEC | 5 | 2 | 15 | 16.2 | 26 | 9.6 | 20 | 24 |
| Mississippi | SEC | 6 | 2 | 14 | 16.6 | 14 | 15.1 | 18 | 19 |
| Oklahoma State | Big 12 | 7 | 0 | 13 | 17.2 | 6 | 18.9 | 14 | 12 |
| Stanford | Pac 12 | 7 | 1 | 12 | 18.1 | 11 | 16.7 | 11 | 9 |
| LSU | SEC | 7 | 0 | 11 | 18.1 | 4 | 20.9 | 2 | 4 |
| Notre Dame | Independent | 7 | 1 | 10 | 18.9 | 9 | 18.4 | 5 | 8 |
| Florida | SEC | 7 | 1 | 9 | 19.3 | 10 | 17.0 | 10 | 11 |
| Tennessee | SEC | 3 | 4 | 8 | 19.5 | 46 | 3.5 | | |
| Texas Christian | Big 12 | 7 | 0 | 7 | 20.7 | 7 | 18.7 | 8 | 5 |
| USC | Pac 12 | 5 | 3 | 6 | 20.8 | 28 | 9.1 | | |
| Ohio State | Big Ten | 8 | 0 | 5 | 21.2 | 8 | 18.4 | 3 | 1 |
| Alabama | SEC | 7 | 1 | 4 | 23.2 | 12 | 15.6 | 4 | 7 |
| Clemson | ACC | 7 | 0 | 3 | 25.3 | 1 | 21.4 | 1 | 3 |
| Oklahoma | Big 12 | 7 | 1 | 2 | 25.8 | 21 | 11.4 | 15 | 14 |
| Baylor | Big 12 | 6 | 0 | 1 | 27.5 | 16 | 14.6 | 6 | 2 |
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.
