| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| Texas | Big 12 | 1 | 4 | 70 | -1.1 | 80 | -4.1 | | |
| Texas-San Antonio | Conference USA | 1 | 4 | 109 | -15.0 | 109 | -9.7 | | |
| Idaho | Sun Belt | 0 | 4 | 124 | -23.4 | 119 | -13.2 | | |
| Miami (Ohio) | Mid-American | 0 | 4 | 121 | -21.7 | 121 | -13.7 | | |
| Fresno State | Mountain West | 0 | 4 | 114 | -17.2 | 122 | -14.0 | | |
| Purdue | Big Ten | 0 | 4 | 89 | -6.9 | 123 | -14.8 | | |
| Eastern Michigan | Mid-American | 1 | 4 | 119 | -18.7 | 124 | -15.0 | | |
| North Texas | Conference USA | 0 | 4 | 127 | -26.0 | 125 | -16.1 | | |
| Central Florida | American Athletic | 0 | 4 | 93 | -8.4 | 126 | -16.3 | | |
| Wyoming | Mountain West | 0 | 4 | 120 | -20.5 | 127 | -19.1 | | |
| New Mexico State | Sun Belt | 0 | 4 | 126 | -25.0 | 128 | -19.7 | | |
| South Carolina | SEC | 2 | 3 | 54 | 4.3 | 63 | -1.2 | | |
| Louisville | ACC | 1 | 3 | 34 | 9.3 | 65 | -1.5 | | |
| Arkansas | SEC | 2 | 3 | 35 | 9.2 | 67 | -1.7 | | |
| Ball State | Mid-American | 1 | 3 | 87 | -6.8 | 68 | -1.9 | | |
| Nebraska | Big Ten | 2 | 3 | 41 | 8.1 | 71 | -2.5 | | |
| Hawaii | Mountain West | 1 | 3 | 107 | -14.6 | 76 | -3.4 | | |
| Tennessee | SEC | 1 | 3 | 22 | 14.2 | 77 | -3.4 | | |
| Central Michigan | Mid-American | 1 | 3 | 80 | -4.3 | 78 | -3.5 | | |
| Wake Forest | ACC | 1 | 3 | 78 | -3.1 | 81 | -4.4 | | |
| Vanderbilt | SEC | 1 | 3 | 56 | 3.1 | 82 | -4.7 | | |
| Connecticut | American Athletic | 1 | 3 | 86 | -6.6 | 83 | -4.7 | | |
| Akron | Mid-American | 1 | 3 | 95 | -9.4 | 84 | -5.2 | | |
| Virginia Tech | ACC | 1 | 3 | 46 | 7.0 | 85 | -5.3 | | |
| Nevada-Las Vegas | Mountain West | 1 | 3 | 100 | -10.8 | 87 | -5.5 | | |
| Massachusetts | Mid-American | 1 | 3 | 106 | -14.6 | 89 | -5.5 | | |
| Arkansas State | Sun Belt | 1 | 3 | 102 | -12.2 | 90 | -5.7 | | |
| Georgia Tech | ACC | 1 | 3 | 28 | 10.7 | 91 | -6.1 | | |
| Northern Illinois | Mid-American | 1 | 3 | 74 | -2.5 | 92 | -6.2 | | |
| Rice | Conference USA | 1 | 3 | 112 | -15.6 | 93 | -6.7 | | |
| Southern Methodist | American Athletic | 1 | 3 | 104 | -13.5 | 94 | -7.0 | | |
| Western Michigan | Mid-American | 0 | 3 | 98 | -9.9 | 95 | -7.3 | | |
| Kent State | Mid-American | 1 | 3 | 118 | -18.2 | 96 | -7.5 | | |
| Florida International | Conference USA | 1 | 3 | 96 | -9.4 | 97 | -7.6 | | |
| Maryland | Big Ten | 1 | 3 | 90 | -6.9 | 98 | -7.7 | | |
| Colorado State | Mountain West | 1 | 3 | 92 | -7.5 | 99 | -7.8 | | |
| Old Dominion | Conference USA | 1 | 3 | 122 | -22.5 | 100 | -8.0 | | |
| San Diego State | Mountain West | 1 | 3 | 101 | -11.3 | 101 | -8.2 | | |
| Nevada | Mountain West | 1 | 3 | 97 | -9.8 | 102 | -8.2 | | |
| Middle Tennessee State | Conference USA | 1 | 3 | 62 | 1.2 | 104 | -8.5 | | |
| San Jose State | Mountain West | 1 | 3 | 94 | -8.8 | 105 | -8.7 | | |
| Buffalo | Mid-American | 1 | 3 | 99 | -10.0 | 106 | -9.4 | | |
| Army | Independent | 1 | 3 | 91 | -7.1 | 107 | -9.4 | | |
| Louisiana-Monroe | Sun Belt | 0 | 3 | 108 | -14.7 | 108 | -9.6 | | |
| Florida Atlantic | Conference USA | 1 | 3 | 111 | -15.2 | 110 | -9.7 | | |
| North Carolina-Charlotte | Conference USA | 1 | 3 | 128 | -30.9 | 111 | -10.1 | | |
| Virginia | ACC | 0 | 3 | 71 | -1.7 | 113 | -10.2 | | |
| South Florida | American Athletic | 0 | 3 | 88 | -6.8 | 114 | -10.6 | | |
| Texas State | Sun Belt | 0 | 3 | 115 | -17.5 | 115 | -11.1 | | |
| Texas-El Paso | Conference USA | 1 | 3 | 123 | -23.3 | 116 | -11.6 | | |
| Kansas | Big 12 | 0 | 3 | 105 | -13.9 | 117 | -11.8 | | |
| Troy | Sun Belt | 0 | 3 | 116 | -17.5 | 118 | -12.8 | | |
| Louisiana-Lafayette | Sun Belt | 0 | 3 | 103 | -13.3 | 120 | -13.3 | | |
| Minnesota | Big Ten | 3 | 2 | 76 | -2.8 | 34 | 6.5 | | |
| Mississippi State | SEC | 2 | 2 | 20 | 14.8 | 35 | 6.4 | | |
| Brigham Young | Independent | 3 | 2 | 42 | 8.1 | 38 | 6.0 | | |
| Arizona State | Pac 12 | 2 | 2 | 37 | 9.1 | 45 | 4.2 | | |
| East Carolina | American Athletic | 2 | 2 | 57 | 3.0 | 46 | 4.0 | | |
| Cincinnati | American Athletic | 2 | 2 | 68 | -0.3 | 51 | 3.2 | | |
| Oregon | Pac 12 | 2 | 2 | 43 | 7.8 | 54 | 2.8 | | |
| Texas Tech | Big 12 | 2 | 2 | 31 | 9.8 | 55 | 2.4 | | |
| Tulsa | American Athletic | 2 | 2 | 84 | -5.1 | 57 | 2.1 | | |
| Auburn | SEC | 2 | 2 | 33 | 9.7 | 58 | 1.2 | | |
| Wisconsin | Big Ten | 3 | 2 | 26 | 11.3 | 59 | 0.5 | | |
| Bowling Green State | Mid-American | 3 | 2 | 73 | -2.5 | 60 | 0.4 | | |
| Arizona | Pac 12 | 2 | 2 | 64 | 0.5 | 61 | 0.2 | | |
| Air Force | Mountain West | 1 | 2 | 82 | -4.9 | 62 | -0.8 | | |
| Louisiana Tech | Conference USA | 2 | 2 | 53 | 4.5 | 64 | -1.2 | | |
| Washington | Pac 12 | 1 | 2 | 30 | 10.0 | 66 | -1.6 | | |
| Iowa State | Big 12 | 1 | 2 | 69 | -0.4 | 69 | -2.1 | | |
| Oregon State | Pac 12 | 1 | 2 | 67 | -0.3 | 70 | -2.4 | | |
| South Alabama | Sun Belt | 2 | 2 | 117 | -17.7 | 72 | -2.6 | | |
| Boston College | ACC | 1 | 2 | 61 | 2.2 | 73 | -2.6 | | |
| Colorado | Pac 12 | 2 | 2 | 79 | -3.7 | 74 | -3.2 | | |
| Utah State | Mountain West | 1 | 2 | 66 | -0.1 | 75 | -3.3 | | |
| Southern Mississippi | Conference USA | 2 | 2 | 83 | -5.1 | 79 | -3.8 | | |
| New Mexico | Mountain West | 2 | 2 | 110 | -15.1 | 86 | -5.4 | | |
| Rutgers | Big Ten | 1 | 2 | 81 | -4.4 | 88 | -5.5 | | |
| Tulane | American Athletic | 1 | 2 | 113 | -16.7 | 103 | -8.4 | | |
| Georgia State | Sun Belt | 1 | 2 | 125 | -24.8 | 112 | -10.1 | | |
| Stanford | Pac 12 | 4 | 1 | 5 | 19.3 | 17 | 12.7 | | 16 |
| Mississippi | SEC | 3 | 1 | 12 | 17.4 | 22 | 10.8 | | 14 |
| Michigan | Big Ten | 4 | 1 | 14 | 17.1 | 23 | 10.0 | | 18 |
| Kentucky | SEC | 3 | 1 | 52 | 5.2 | 24 | 8.7 | | |
| Alabama | SEC | 4 | 1 | 2 | 25.0 | 25 | 8.7 | | 8 |
| Indiana | Big Ten | 3 | 1 | 55 | 3.9 | 26 | 8.2 | | |
| Western Kentucky | Conference USA | 4 | 1 | 47 | 6.9 | 27 | 7.8 | | |
| UCLA | Pac 12 | 4 | 1 | 21 | 14.3 | 28 | 7.6 | | 20 |
| Notre Dame | Independent | 4 | 1 | 16 | 16.8 | 29 | 7.5 | | 15 |
| Pittsburgh | ACC | 2 | 1 | 38 | 9.0 | 30 | 7.4 | | |
| Ohio U. | Mid-American | 3 | 1 | 85 | -5.2 | 31 | 7.0 | | |
| USC | Pac 12 | 3 | 1 | 3 | 23.0 | 32 | 6.8 | | 17 |
| Missouri | SEC | 3 | 1 | 51 | 5.3 | 33 | 6.7 | | |
| Duke | ACC | 3 | 1 | 45 | 7.4 | 36 | 6.3 | | |
| West Virginia | Big 12 | 2 | 1 | 8 | 17.7 | 37 | 6.1 | | |
| Penn State | Big Ten | 4 | 1 | 59 | 2.4 | 39 | 6.0 | | |
| Kansas State | Big 12 | 2 | 1 | 25 | 11.5 | 40 | 5.6 | | |
| Boise State | Mountain West | 3 | 1 | 17 | 16.5 | 41 | 5.5 | | 25 |
| Georgia | SEC | 3 | 1 | 6 | 18.5 | 42 | 4.8 | | 19 |
| Georgia Southern | Sun Belt | 3 | 1 | 77 | -3.0 | 43 | 4.4 | | |
| Washington State | Pac 12 | 2 | 1 | 63 | 0.9 | 44 | 4.3 | | |
| Marshall | Conference USA | 3 | 1 | 72 | -2.1 | 47 | 4.0 | | |
| Syracuse | ACC | 2 | 1 | 65 | 0.4 | 48 | 3.9 | | |
| Appalachian State | Sun Belt | 2 | 1 | 75 | -2.8 | 49 | 3.7 | | |
| Illinois | Big Ten | 3 | 1 | 60 | 2.3 | 50 | 3.3 | | |
| Miami (Fla.) | ACC | 2 | 1 | 44 | 7.4 | 52 | 3.0 | | |
| North Carolina | ACC | 2 | 1 | 24 | 12.4 | 53 | 2.9 | | |
| North Carolina State | ACC | 3 | 1 | 36 | 9.1 | 56 | 2.4 | | |
| Northwestern | Big Ten | 4 | 0 | 29 | 10.3 | 1 | 18.0 | | 13 |
| Florida | SEC | 5 | 0 | 11 | 17.5 | 2 | 17.8 | | 11 |
| LSU | SEC | 4 | 0 | 18 | 16.4 | 3 | 16.5 | | 7 |
| Texas Christian | Big 12 | 4 | 0 | 15 | 16.8 | 4 | 16.0 | | 2 |
| Ohio State | Big Ten | 5 | 0 | 9 | 17.7 | 5 | 15.5 | | 1 |
| Temple | American Athletic | 4 | 0 | 58 | 2.9 | 6 | 15.3 | | |
| Utah | Pac 12 | 4 | 0 | 13 | 17.3 | 7 | 15.2 | | 5 |
| Texas A&M | SEC | 5 | 0 | 7 | 18.0 | 8 | 15.2 | | 9 |
| Iowa | Big Ten | 4 | 0 | 27 | 11.2 | 9 | 15.0 | | 22 |
| Clemson | ACC | 3 | 0 | 10 | 17.6 | 10 | 14.3 | | 6 |
| Oklahoma | Big 12 | 4 | 0 | 4 | 20.4 | 11 | 13.9 | | 10 |
| California | Pac 12 | 4 | 0 | 39 | 8.7 | 12 | 13.8 | | 23 |
| Oklahoma State | Big 12 | 4 | 0 | 23 | 12.8 | 13 | 13.7 | | 21 |
| Memphis | American Athletic | 4 | 0 | 50 | 5.3 | 14 | 13.5 | | |
| Toledo | Mid-American | 4 | 0 | 48 | 5.7 | 15 | 13.5 | | 24 |
| Houston | American Athletic | 3 | 0 | 32 | 9.7 | 16 | 13.1 | | |
| Michigan State | Big Ten | 5 | 0 | 40 | 8.3 | 18 | 12.6 | | 4 |
| Navy | American Athletic | 3 | 0 | 49 | 5.7 | 19 | 12.2 | | |
| Florida State | ACC | 4 | 0 | 19 | 16.0 | 20 | 11.6 | | 12 |
| Baylor | Big 12 | 3 | 0 | 1 | 25.5 | 21 | 11.5 | | 3 |
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.
