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