| 2015 College Football Ratings Summary |
| College |
Conference |
W |
L |
P-Rank |
P-Rating |
R-Rank |
R-Rating |
CFP Rank |
AP Rank |
| Baylor | Big 12 | 6 | 0 | 1 | 27.9 | 12 | 14.9 | | 2 |
| Clemson | ACC | 6 | 0 | 2 | 25.7 | 5 | 19.1 | | 3 |
| Oklahoma | Big 12 | 6 | 1 | 3 | 24.5 | 23 | 11.4 | | 14 |
| Alabama | SEC | 7 | 1 | 4 | 23.2 | 11 | 14.9 | | 7 |
| Ohio State | Big Ten | 8 | 0 | 5 | 21.1 | 6 | 18.5 | | 1 |
| USC | Pac 12 | 4 | 3 | 6 | 21.0 | 37 | 5.3 | | |
| Notre Dame | Independent | 6 | 1 | 7 | 19.7 | 14 | 14.2 | | 9 |
| Stanford | Pac 12 | 6 | 1 | 8 | 19.2 | 17 | 13.6 | | 8 |
| Texas Christian | Big 12 | 6 | 0 | 9 | 18.3 | 7 | 18.3 | | 5 |
| LSU | SEC | 7 | 0 | 10 | 18.3 | 2 | 20.8 | | 4 |
| Florida | SEC | 6 | 1 | 11 | 17.4 | 10 | 15.8 | | 11 |
| Michigan | Big Ten | 5 | 2 | 12 | 17.4 | 24 | 10.6 | | 15 |
| Tennessee | SEC | 2 | 4 | 13 | 17.3 | 57 | 0.9 | | |
| Oklahoma State | Big 12 | 6 | 0 | 14 | 16.7 | 9 | 17.2 | | 12 |
| Mississippi State | SEC | 5 | 2 | 15 | 16.4 | 27 | 9.7 | | 25 |
| Utah | Pac 12 | 6 | 1 | 16 | 16.2 | 13 | 14.3 | | 13 |
| Mississippi | SEC | 5 | 2 | 17 | 16.1 | 19 | 13.0 | | 19 |
| West Virginia | Big 12 | 2 | 3 | 18 | 15.8 | 49 | 2.5 | | |
| Florida State | ACC | 6 | 1 | 19 | 15.6 | 32 | 7.9 | | 17 |
| Georgia | SEC | 4 | 2 | 20 | 14.8 | 44 | 4.0 | | |
| UCLA | Pac 12 | 5 | 2 | 21 | 14.1 | 29 | 9.0 | | 24 |
| Iowa | Big Ten | 6 | 0 | 22 | 14.0 | 1 | 21.4 | | 10 |
| North Carolina | ACC | 4 | 1 | 23 | 13.8 | 38 | 5.2 | | |
| Texas A&M | SEC | 5 | 2 | 24 | 13.7 | 28 | 9.2 | | |
| Houston | American Athletic | 6 | 0 | 25 | 13.5 | 16 | 13.7 | | 18 |
| Boise State | Mountain West | 5 | 2 | 26 | 12.1 | 42 | 4.5 | | |
| Michigan State | Big Ten | 8 | 0 | 27 | 11.9 | 3 | 20.3 | | 6 |
| Memphis | American Athletic | 6 | 0 | 28 | 11.4 | 4 | 19.4 | | 16 |
| Wisconsin | Big Ten | 6 | 2 | 29 | 11.4 | 34 | 7.7 | | |
| Georgia Tech | ACC | 2 | 5 | 30 | 11.1 | 71 | -1.3 | | |
| California | Pac 12 | 4 | 2 | 31 | 11.1 | 22 | 11.7 | | |
| Washington | Pac 12 | 2 | 4 | 32 | 10.7 | 62 | 0.4 | | |
| Duke | ACC | 5 | 1 | 33 | 10.2 | 33 | 7.8 | | 22 |
| Arkansas | SEC | 3 | 4 | 34 | 9.8 | 56 | 1.1 | | |
| Auburn | SEC | 3 | 3 | 35 | 9.1 | 47 | 3.3 | | |
| Pittsburgh | ACC | 5 | 1 | 36 | 9.0 | 18 | 13.2 | | 23 |
| Texas Tech | Big 12 | 4 | 3 | 37 | 8.8 | 41 | 4.7 | | |
| Louisville | ACC | 2 | 4 | 38 | 8.5 | 69 | -1.1 | | |
| Arizona State | Pac 12 | 3 | 3 | 39 | 8.3 | 48 | 3.1 | | |
| Oregon | Pac 12 | 3 | 3 | 40 | 8.3 | 43 | 4.2 | | |
| North Carolina State | ACC | 4 | 2 | 41 | 8.2 | 64 | 0.0 | | |
| Nebraska | Big Ten | 3 | 5 | 42 | 7.8 | 77 | -2.1 | | |
| Brigham Young | Independent | 5 | 2 | 43 | 7.6 | 30 | 8.9 | | |
| Virginia Tech | ACC | 2 | 5 | 44 | 7.1 | 83 | -4.5 | | |
| Bowling Green State | Mid-American | 6 | 2 | 45 | 6.4 | 36 | 5.6 | | |
| Toledo | Mid-American | 7 | 0 | 46 | 6.3 | 15 | 13.7 | | 20 |
| Washington State | Pac 12 | 5 | 1 | 47 | 6.2 | 20 | 12.9 | | |
| Western Kentucky | Conference USA | 6 | 2 | 48 | 6.2 | 35 | 7.6 | | |
| Appalachian State | Sun Belt | 5 | 1 | 49 | 6.1 | 25 | 9.9 | | |
| Texas | Big 12 | 3 | 4 | 50 | 5.5 | 40 | 5.2 | | |
| Temple | American Athletic | 7 | 0 | 51 | 5.0 | 8 | 17.2 | | 21 |
| Missouri | SEC | 3 | 4 | 52 | 4.5 | 70 | -1.2 | | |
| Northwestern | Big Ten | 5 | 2 | 53 | 4.0 | 21 | 12.3 | | |
| Navy | American Athletic | 4 | 1 | 54 | 3.8 | 31 | 8.5 | | |
| Kansas State | Big 12 | 2 | 4 | 55 | 3.8 | 68 | -0.8 | | |
| Arizona | Pac 12 | 4 | 3 | 56 | 3.7 | 51 | 2.0 | | |
| Penn State | Big Ten | 6 | 2 | 57 | 3.5 | 26 | 9.7 | | |
| Miami (Fla.) | ACC | 3 | 3 | 58 | 3.4 | 58 | 0.8 | | |
| Kentucky | SEC | 3 | 3 | 59 | 3.4 | 54 | 1.1 | | |
| Louisiana Tech | Conference USA | 4 | 3 | 60 | 3.2 | 65 | -0.1 | | |
| Boston College | ACC | 1 | 5 | 61 | 3.2 | 106 | -10.0 | | |
| Utah State | Mountain West | 3 | 3 | 62 | 3.1 | 59 | 0.7 | | |
| South Carolina | SEC | 3 | 4 | 63 | 3.0 | 72 | -1.6 | | |
| East Carolina | American Athletic | 3 | 4 | 64 | 1.7 | 52 | 1.8 | | |
| Vanderbilt | SEC | 2 | 4 | 65 | 1.6 | 80 | -3.7 | | |
| Illinois | Big Ten | 3 | 3 | 66 | 1.4 | 61 | 0.5 | | |
| Cincinnati | American Athletic | 3 | 3 | 67 | 1.1 | 50 | 2.5 | | |
| Northern Illinois | Mid-American | 4 | 3 | 68 | 0.5 | 81 | -4.5 | | |
| South Florida | American Athletic | 3 | 3 | 69 | 0.4 | 67 | -0.7 | | |
| Virginia | ACC | 1 | 5 | 70 | 0.1 | 88 | -6.2 | | |
| Central Michigan | Mid-American | 3 | 4 | 71 | -0.3 | 75 | -1.7 | | |
| Indiana | Big Ten | 3 | 4 | 72 | -1.2 | 53 | 1.3 | | |
| Syracuse | ACC | 2 | 4 | 73 | -1.5 | 82 | -4.5 | | |
| Marshall | Conference USA | 6 | 1 | 74 | -2.3 | 39 | 5.2 | | |
| San Diego State | Mountain West | 4 | 3 | 75 | -2.4 | 63 | 0.1 | | |
| Iowa State | Big 12 | 1 | 5 | 76 | -2.4 | 85 | -5.1 | | |
| Maryland | Big Ten | 1 | 5 | 77 | -2.7 | 87 | -6.0 | | |
| Minnesota | Big Ten | 4 | 3 | 78 | -3.2 | 55 | 1.1 | | |
| Western Michigan | Mid-American | 3 | 3 | 79 | -3.2 | 46 | 3.5 | | |
| Georgia Southern | Sun Belt | 4 | 2 | 80 | -3.5 | 45 | 3.6 | | |
| Southern Mississippi | Conference USA | 4 | 3 | 81 | -4.1 | 76 | -1.7 | | |
| Rutgers | Big Ten | 2 | 4 | 82 | -4.5 | 60 | 0.6 | | |
| Middle Tennessee State | Conference USA | 2 | 5 | 83 | -4.7 | 96 | -8.3 | | |
| Colorado | Pac 12 | 3 | 4 | 84 | -4.8 | 86 | -5.9 | | |
| Air Force | Mountain West | 3 | 3 | 85 | -5.8 | 79 | -2.9 | | |
| Wake Forest | ACC | 2 | 5 | 86 | -5.9 | 94 | -8.0 | | |
| Connecticut | American Athletic | 2 | 5 | 87 | -7.0 | 99 | -9.0 | | |
| Oregon State | Pac 12 | 1 | 5 | 88 | -7.1 | 100 | -9.1 | | |
| Tulsa | American Athletic | 3 | 4 | 89 | -7.4 | 78 | -2.1 | | |
| Colorado State | Mountain West | 2 | 4 | 90 | -7.5 | 93 | -7.5 | | |
| Florida International | Conference USA | 3 | 4 | 91 | -7.5 | 95 | -8.2 | | |
| Purdue | Big Ten | 0 | 6 | 92 | -8.2 | 121 | -15.7 | | |
| Arkansas State | Sun Belt | 3 | 3 | 93 | -9.6 | 73 | -1.7 | | |
| Buffalo | Mid-American | 2 | 4 | 94 | -9.8 | 90 | -7.2 | | |
| Nevada | Mountain West | 3 | 4 | 95 | -10.3 | 98 | -8.8 | | |
| Ohio U. | Mid-American | 4 | 3 | 96 | -11.0 | 66 | -0.2 | | |
| Akron | Mid-American | 2 | 4 | 97 | -11.2 | 84 | -5.0 | | |
| San Jose State | Mountain West | 3 | 4 | 98 | -11.9 | 89 | -6.9 | | |
| Louisiana-Lafayette | Sun Belt | 1 | 4 | 99 | -12.4 | 108 | -11.2 | | |
| Army | Independent | 1 | 5 | 100 | -12.5 | 116 | -13.6 | | |
| Ball State | Mid-American | 1 | 6 | 101 | -12.5 | 117 | -13.9 | | |
| Southern Methodist | American Athletic | 1 | 5 | 102 | -12.5 | 102 | -9.3 | | |
| Nevada-Las Vegas | Mountain West | 1 | 5 | 103 | -12.9 | 111 | -12.0 | | |
| Rice | Conference USA | 3 | 3 | 104 | -13.3 | 74 | -1.7 | | |
| Troy | Sun Belt | 1 | 5 | 105 | -13.5 | 119 | -14.9 | | |
| Texas-San Antonio | Conference USA | 1 | 6 | 106 | -14.8 | 115 | -13.3 | | |
| Central Florida | American Athletic | 0 | 7 | 107 | -14.8 | 127 | -20.0 | | |
| Massachusetts | Mid-American | 1 | 6 | 108 | -15.3 | 109 | -11.3 | | |
| Hawaii | Mountain West | 1 | 6 | 109 | -15.7 | 110 | -11.8 | | |
| Wyoming | Mountain West | 1 | 6 | 110 | -16.0 | 124 | -16.4 | | |
| Kansas | Big 12 | 0 | 6 | 111 | -16.5 | 114 | -13.2 | | |
| Texas State | Sun Belt | 1 | 4 | 112 | -17.0 | 107 | -10.0 | | |
| New Mexico | Mountain West | 3 | 4 | 113 | -17.3 | 105 | -9.5 | | |
| Florida Atlantic | Conference USA | 1 | 6 | 114 | -18.8 | 122 | -15.7 | | |
| Tulane | American Athletic | 1 | 5 | 115 | -19.0 | 104 | -9.3 | | |
| South Alabama | Sun Belt | 2 | 4 | 116 | -19.6 | 91 | -7.3 | | |
| Idaho | Sun Belt | 2 | 4 | 117 | -20.5 | 97 | -8.4 | | |
| Fresno State | Mountain West | 1 | 6 | 118 | -20.6 | 112 | -12.2 | | |
| Louisiana-Monroe | Sun Belt | 0 | 6 | 119 | -20.7 | 120 | -15.1 | | |
| Kent State | Mid-American | 2 | 5 | 120 | -20.7 | 92 | -7.3 | | |
| Georgia State | Sun Belt | 2 | 3 | 121 | -22.7 | 103 | -9.3 | | |
| Eastern Michigan | Mid-American | 1 | 7 | 122 | -23.5 | 126 | -19.4 | | |
| North Texas | Conference USA | 0 | 6 | 123 | -23.7 | 123 | -16.2 | | |
| Old Dominion | Conference USA | 2 | 4 | 124 | -24.7 | 101 | -9.2 | | |
| Texas-El Paso | Conference USA | 2 | 4 | 125 | -25.1 | 113 | -12.6 | | |
| Miami (Ohio) | Mid-American | 0 | 7 | 126 | -25.3 | 125 | -17.3 | | |
| New Mexico State | Sun Belt | 0 | 7 | 127 | -30.3 | 128 | -23.8 | | |
| North Carolina-Charlotte | Conference USA | 1 | 5 | 128 | -32.1 | 118 | -14.8 | | |
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.
