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