Return to the college football ratings index
Final power ratings for the 1931 season are listed below. Home field advantage for this year was .579 and the root for determining point spreads was 1.280.
The average home field advantage for this year is 2.98 points.
Some game locations are unknown and have been estimated. Research continues.
KEY: PR=Final power rating, PS=Pre-season power rating, SOS=strength of schedule.
| Rank | Team | PR | PS | SOS | PF | PA | Wins | Losses | Ties | Pct | Conference |
| 1 | Southern California | .965 | .855 | .950 | 33.00 | 4.73 | 10 | 1 | 0 | .909 | PCC |
| 2 | Tulane | .923 | .750 | .674 | 29.17 | 4.67 | 11 | 1 | 0 | .917 | Southern |
| 3 | Tennessee | .905 | .871 | .511 | 24.30 | 1.50 | 9 | 0 | 1 | .950 | Southern |
| 4 | Notre Dame | .854 | .932 | .826 | 23.89 | 4.44 | 6 | 2 | 1 | .722 | Eastern Independent |
| 5 | Southern Methodist | .842 | .773 | .634 | 14.55 | 4.36 | 9 | 1 | 1 | .864 | SWC |
| 6 | Georgia | .827 | .731 | .823 | 20.10 | 11.80 | 8 | 2 | 0 | .800 | Southern |
| 7 | St. Mary's | .822 | .503 | .513 | 11.90 | 6.50 | 8 | 2 | 0 | .800 | South/West Independent |
| 8 | Pittsburgh | .821 | .795 | .415 | 31.11 | 4.11 | 8 | 1 | 0 | .889 | Eastern Independent |
| 9 | Purdue | .818 | .721 | .367 | 19.20 | 3.90 | 9 | 1 | 0 | .900 | Western |
| 10 | Alabama | .808 | .858 | .393 | 37.00 | 5.70 | 9 | 1 | 0 | .900 | Southern |
| 11 | Northwestern | .808 | .743 | .615 | 15.33 | 4.44 | 7 | 1 | 1 | .833 | Western |
| 12 | California | .771 | .585 | .569 | 10.60 | 4.10 | 8 | 2 | 0 | .800 | PCC |
| 13 | Army | .771 | .775 | .529 | 26.91 | 6.55 | 8 | 2 | 1 | .773 | Northeast Independent |
| 14 | Texas Christian | .762 | .748 | .511 | 13.25 | 3.42 | 9 | 2 | 1 | .792 | SWC |
| 15 | Michigan | .751 | .730 | .292 | 18.10 | 2.70 | 8 | 1 | 1 | .850 | Western |
| 16 | Colgate | .749 | .786 | .261 | 25.22 | 3.78 | 8 | 1 | 0 | .889 | Northeast Independent |
| 17 | Marquette | .744 | .627 | .268 | 19.11 | 2.78 | 8 | 1 | 0 | .889 | Eastern Independent |
| 18 | Nebraska | .744 | .647 | .539 | 13.60 | 8.20 | 8 | 2 | 0 | .800 | Big 6 |
| 19 | Utah | .743 | .713 | .420 | 33.44 | 3.44 | 7 | 2 | 0 | .778 | Rocky Mountain |
| 20 | Bucknell | .742 | .433 | .420 | 16.44 | 5.22 | 6 | 0 | 3 | .833 | Eastern Independent |
| 21 | Temple | .738 | .442 | .309 | 15.80 | 4.20 | 8 | 1 | 1 | .850 | Eastern Independent |
| 22 | Stanford | .736 | .767 | .568 | 14.55 | 4.00 | 7 | 2 | 2 | .727 | PCC |
| 23 | Texas A&M | .732 | .540 | .612 | 13.70 | 3.40 | 7 | 3 | 0 | .700 | SWC |
| 24 | Kansas State | .724 | .452 | .337 | 16.40 | 3.90 | 8 | 2 | 0 | .800 | Big 6 |
| 25 | New York University | .714 | .671 | .596 | 21.20 | 4.70 | 6 | 3 | 1 | .650 | Northeast Independent |
| 26 | Columbia | .711 | .481 | .279 | 24.78 | 2.89 | 7 | 1 | 1 | .833 | Northeast Independent |
| 27 | Ohio State | .710 | .650 | .600 | 21.56 | 8.22 | 6 | 3 | 0 | .667 | Western |
| 28 | Vanderbilt | .705 | .797 | .845 | 21.33 | 11.44 | 5 | 4 | 0 | .556 | Southern |
| 29 | Syracuse | .704 | .600 | .269 | 26.44 | 6.22 | 7 | 1 | 1 | .833 | Northeast Independent |
| 30 | Kentucky | .704 | .625 | .559 | 14.44 | 5.33 | 5 | 2 | 2 | .667 | Southern |
| 31 | Fordham | .703 | .680 | .312 | 22.78 | 4.00 | 6 | 1 | 2 | .778 | Northeast Independent |
| 32 | Harvard | .700 | .548 | .326 | 18.63 | 3.63 | 7 | 1 | 0 | .875 | Northeast Independent |
| 33 | Maryland | .700 | .540 | .302 | 19.40 | 9.80 | 8 | 1 | 1 | .850 | Southern |
| 34 | Texas | .699 | .788 | .633 | 13.10 | 5.80 | 6 | 4 | 0 | .600 | SWC |
| 35 | Oregon | .695 | .668 | .663 | 9.00 | 8.70 | 6 | 2 | 2 | .700 | PCC |
| 36 | Minnesota | .687 | .615 | .505 | 19.10 | 7.20 | 7 | 3 | 0 | .700 | Western |
| 37 | Washington State | .686 | .778 | .722 | 12.30 | 11.10 | 6 | 4 | 0 | .600 | PCC |
| 38 | Oregon State | .685 | .681 | .520 | 19.80 | 6.20 | 6 | 3 | 1 | .650 | PCC |
| 39 | Cornell | .678 | .558 | .192 | 29.88 | 2.50 | 7 | 1 | 0 | .875 | Northeast Independent |
| 40 | Washington | .670 | .581 | .637 | 18.44 | 9.22 | 5 | 3 | 1 | .611 | PCC |
| 41 | Detroit Mercy | .659 | .679 | .389 | 11.20 | 7.10 | 7 | 2 | 1 | .750 | Eastern Independent |
| 42 | Rice | .659 | .447 | .518 | 17.80 | 6.60 | 6 | 4 | 0 | .600 | SWC |
| 43 | Yale | .656 | .647 | .400 | 24.75 | 9.88 | 5 | 1 | 2 | .750 | Northeast Independent |
| 44 | Michigan State | .641 | .557 | .426 | 32.33 | 6.78 | 5 | 3 | 1 | .611 | Eastern Independent |
| 45 | Duke | .624 | .604 | .527 | 7.40 | 4.60 | 5 | 3 | 2 | .600 | Southern |
| 46 | Oklahoma State | .618 | .513 | .193 | 16.64 | 5.55 | 8 | 2 | 1 | .773 | MVC |
| 47 | Auburn | .616 | .339 | .542 | 12.67 | 8.67 | 5 | 3 | 1 | .611 | Southern |
| 48 | Dartmouth | .612 | .710 | .462 | 24.00 | 12.22 | 5 | 3 | 1 | .611 | Northeast Independent |
| 49 | Louisiana State | .579 | .598 | .556 | 15.22 | 10.00 | 5 | 4 | 0 | .556 | Southern |
| 50 | Sewanee | .569 | .369 | .491 | 7.00 | 9.80 | 6 | 3 | 1 | .650 | Southern |
| 51 | Washington & Jefferson | .564 | .583 | .433 | 11.20 | 8.90 | 6 | 4 | 0 | .600 | Eastern Independent |
| 52 | North Carolina | .563 | .696 | .581 | 11.40 | 9.20 | 4 | 3 | 3 | .550 | Southern |
| 53 | Villanova | .561 | .370 | .433 | 14.56 | 6.89 | 4 | 3 | 2 | .556 | Eastern Independent |
| 54 | Utah State | .555 | .400 | .227 | 18.38 | 9.00 | 6 | 2 | 0 | .750 | Rocky Mountain |
| 55 | Wisconsin | .548 | .681 | .600 | 10.50 | 11.00 | 5 | 4 | 1 | .550 | Western |
| 56 | Carnegie Tech | .547 | .734 | .719 | 9.11 | 8.44 | 3 | 5 | 1 | .389 | Eastern Independent |
| 57 | Colorado State | .533 | .455 | .501 | 15.22 | 15.33 | 5 | 4 | 0 | .556 | Rocky Mountain |
| 58 | Brown | .532 | .533 | .108 | 18.40 | 10.00 | 7 | 3 | 0 | .700 | Northeast Independent |
| 59 | UCLA | .530 | .382 | .592 | 10.38 | 7.13 | 3 | 4 | 1 | .438 | PCC |
| 60 | Navy | .521 | .654 | .574 | 7.09 | 8.64 | 5 | 5 | 1 | .500 | Eastern Independent |
| 61 | South Carolina | .518 | .528 | .291 | 14.60 | 7.90 | 5 | 4 | 1 | .550 | Southern |
| 62 | Pennsylvania | .518 | .658 | .272 | 13.44 | 10.44 | 6 | 3 | 0 | .667 | Eastern Independent |
| 63 | Iowa State | .507 | .275 | .434 | 9.00 | 9.25 | 5 | 3 | 0 | .625 | Big 6 |
| 64 | Arizona State | .500 | .237 | .050 | 21.13 | 8.25 | 6 | 2 | 0 | .750 | Border |
| 65 | Wyoming | .488 | .269 | .173 | 17.00 | 7.50 | 6 | 4 | 0 | .600 | Rocky Mountain |
| 66 | Kansas | .477 | .517 | .332 | 11.20 | 5.40 | 5 | 5 | 0 | .500 | Big 6 |
| 67 | Centenary | .477 | .498 | .423 | 14.50 | 10.20 | 5 | 5 | 0 | .500 | South/West Independent |
| 68 | Colorado | .473 | .557 | .342 | 13.88 | 11.75 | 5 | 3 | 0 | .625 | Rocky Mountain |
| 69 | Georgetown | .449 | .547 | .486 | 7.80 | 8.60 | 4 | 5 | 1 | .450 | South/West Independent |
| 70 | West Virginia | .445 | .563 | .548 | 9.10 | 12.20 | 4 | 6 | 0 | .400 | Eastern Independent |
| 71 | New Mexico State | .434 | .237 | .059 | 14.90 | 9.00 | 6 | 4 | 0 | .600 | Border |
| 72 | Baylor | .425 | .655 | .656 | 11.11 | 14.89 | 3 | 6 | 0 | .333 | SWC |
| 73 | Drake | .425 | .631 | .445 | 11.82 | 20.55 | 5 | 6 | 0 | .455 | MVC |
| 74 | Oklahoma | .422 | .504 | .534 | 7.33 | 9.00 | 4 | 7 | 1 | .375 | Big 6 |
| 75 | Arkansas | .422 | .543 | .512 | 9.11 | 14.00 | 3 | 5 | 1 | .389 | SWC |
| 76 | Washington & Lee | .414 | .410 | .364 | 6.90 | 9.00 | 4 | 5 | 1 | .450 | Southern |
| 77 | Idaho | .411 | .412 | .566 | 10.71 | 15.14 | 3 | 4 | 0 | .429 | PCC |
| 78 | Grinnell | .407 | .446 | .060 | 11.75 | 7.13 | 5 | 3 | 0 | .625 | MVC |
| 79 | Indiana | .407 | .431 | .671 | 6.38 | 12.25 | 2 | 5 | 1 | .313 | Western |
| 80 | Florida | .406 | .712 | .734 | 7.30 | 16.80 | 2 | 6 | 2 | .300 | Southern |
| 81 | Virginia Tech | .405 | .561 | .413 | 8.44 | 11.56 | 3 | 4 | 2 | .444 | Southern |
| 82 | Davidson | .401 | .479 | .232 | 5.40 | 7.20 | 4 | 4 | 2 | .500 | South/West Independent |
| 83 | Gonzaga | .399 | .230 | .260 | 16.57 | 8.43 | 3 | 4 | 0 | .429 | South/West Independent |
| 84 | Georgia Tech | .390 | .568 | .742 | 9.80 | 20.70 | 2 | 7 | 1 | .250 | Southern |
| 85 | Creighton | .380 | .260 | .328 | 7.00 | 11.11 | 4 | 5 | 0 | .444 | MVC |
| 86 | Brigham Young | .361 | .432 | .246 | 8.63 | 13.00 | 4 | 4 | 0 | .500 | Rocky Mountain |
| 87 | Colorado College | .356 | .390 | .288 | 8.88 | 15.38 | 4 | 4 | 0 | .500 | Rocky Mountain |
| 88 | Mississippi | .352 | .450 | .674 | 8.11 | 23.33 | 2 | 6 | 1 | .278 | Southern |
| 89 | Wake Forest | .345 | .470 | .279 | 5.63 | 17.25 | 4 | 4 | 0 | .500 | South/West Independent |
| 90 | Denver | .343 | .476 | .289 | 10.40 | 14.30 | 4 | 6 | 0 | .400 | Rocky Mountain |
| 91 | Missouri | .327 | .489 | .669 | 7.20 | 19.30 | 2 | 8 | 0 | .200 | Big 6 |
| 92 | Virginia Military Institute | .325 | .467 | .307 | 8.20 | 12.30 | 3 | 6 | 1 | .350 | Southern |
| 93 | North Carolina State | .319 | .316 | .269 | 6.67 | 11.56 | 3 | 6 | 0 | .333 | Southern |
| 94 | New Mexico | .318 | .237 | .125 | 11.43 | 10.00 | 3 | 3 | 1 | .500 | Border |
| 95 | Chicago | .314 | .398 | .389 | 7.11 | 13.78 | 2 | 6 | 1 | .278 | Western |
| 96 | Northern Arizona | .306 | .237 | .224 | 11.75 | 15.63 | 3 | 5 | 0 | .375 | Border |
| 97 | Illinois | .299 | .595 | .551 | 7.25 | 17.50 | 2 | 6 | 0 | .250 | Western |
| 98 | Arizona | .299 | .237 | .261 | 8.00 | 16.56 | 3 | 5 | 1 | .389 | Border |
| 99 | Virginia | .274 | .465 | .499 | 4.00 | 11.20 | 1 | 7 | 2 | .200 | Southern |
| 100 | Wild Card U | .269 | .237 | .624 | 5.39 | 22.42 | 46 | 211 | 18 | .200 | |
| 101 | Iowa | .258 | .585 | .797 | 0.88 | 16.38 | 1 | 6 | 1 | .188 | Western |
| 102 | Penn State | .250 | .510 | .468 | 6.90 | 16.70 | 2 | 8 | 0 | .200 | Eastern Independent |
| 103 | Mississippi State | .247 | .263 | .413 | 5.88 | 23.38 | 2 | 6 | 0 | .250 | Southern |
| 104 | Northern Colorado | .245 | .303 | .156 | 7.14 | 9.86 | 2 | 4 | 1 | .357 | Rocky Mountain |
| 105 | Montana | .236 | .428 | .596 | 8.00 | 22.14 | 1 | 6 | 0 | .143 | PCC |
| 106 | Clemson | .220 | .632 | .407 | 2.11 | 18.22 | 1 | 6 | 2 | .222 | Southern |
| 107 | Princeton | .183 | .360 | .420 | 6.88 | 20.50 | 1 | 7 | 0 | .125 | Eastern Independent |
| 108 | Montana State | .152 | .496 | .186 | 6.43 | 20.14 | 1 | 5 | 1 | .214 | Rocky Mountain |
| 109 | Washington (Missouri) | .143 | .409 | .142 | 2.89 | 21.56 | 2 | 7 | 0 | .222 | MVC |
| 110 | Western State | .133 | .089 | .181 | 7.86 | 18.14 | 1 | 6 | 0 | .143 | Rocky Mountain |
| 111 | Colorado Mines | .110 | .183 | .089 | 3.71 | 21.43 | 1 | 5 | 1 | .214 | Rocky Mountain |
| Conference | PR | PS | SOS | Wins | Losses | Ties | Pct | Teams |
| Northeast Independent | .685 | .636 | .339 | 73 | 18 | 9 | .775 | 11 |
| SWC | .649 | .642 | .582 | 43 | 25 | 3 | .627 | 7 |
| PCC | .638 | .614 | .638 | 55 | 31 | 7 | .629 | 10 |
| Eastern Independent | .586 | .593 | .461 | 79 | 51 | 11 | .599 | 15 |
| Western | .560 | .615 | .539 | 49 | 36 | 6 | .571 | 10 |
| Southern | .539 | .572 | .518 | 108 | 90 | 24 | .541 | 23 |
| Big 6 | .534 | .481 | .474 | 32 | 27 | 1 | .542 | 6 |
| South/West Independent | .482 | .454 | .366 | 28 | 24 | 3 | .536 | 6 |
| MVC | .394 | .452 | .234 | 24 | 23 | 1 | .510 | 5 |
| Rocky Mountain | .374 | .397 | .258 | 46 | 49 | 3 | .485 | 12 |
| Border | .372 | .237 | .144 | 21 | 19 | 2 | .524 | 5 |
This page has been accessed times since April 26, 1999.
Last Updated on 09/15/13
By James Howell
Email: cfootball@jhowell.net