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