Computer Rating System Prediction Results for College Football (NCAA IA)
2009 Season Totals
Through
| Rank |
System |
Pct. Correct |
Against Spread |
Absolute Error |
Bias |
Mean Square Error |
games |
suw |
sul |
atsw |
atsl |
| 1 | Massey * | 0.77688 | 0.51105 | 11.8020 | 1.2431 | 223.550 | 372 | 289 | 83 | 185 | 177 |
| 2 | Pigskin Index | 0.75630 | 0.49475 | 11.5405 | 0.6110 | 216.060 | 714 | 540 | 174 | 330 | 337 |
| 3 | System Average | 0.75210 | 0.50144 | 11.5723 | 0.4370 | 217.049 | 714 | 537 | 177 | 349 | 347 |
| 4 | Atomic Football | 0.75210 | 0.49713 | 11.5120 | 0.8409 | 216.111 | 714 | 537 | 177 | 346 | 350 |
| 5 | Dokter Entropy | 0.75070 | 0.51655 | 11.4444 | 0.7752 | 212.719 | 714 | 536 | 178 | 359 | 336 |
| 6 | Hank Trexler | 0.75035 | 0.49238 | 11.8850 | -0.0084 | 231.237 | 713 | 535 | 178 | 323 | 333 |
| 7 | Moore Power Ratings | 0.74930 | 0.51729 | 11.7112 | 0.5256 | 225.807 | 714 | 535 | 179 | 359 | 335 |
| 8 | Billingsley+ | 0.74930 | 0.50935 | 11.7586 | 0.4208 | 228.385 | 714 | 535 | 179 | 354 | 341 |
| 9 | Laz Index | 0.74930 | 0.50144 | 11.6667 | 0.1511 | 221.865 | 714 | 535 | 179 | 348 | 346 |
| 10 | NationalSportsRankings | 0.74848 | 0.48460 | 11.7592 | 0.3506 | 225.182 | 656 | 491 | 165 | 299 | 318 |
| 11 | System Median | 0.74790 | 0.49197 | 11.5495 | 0.4387 | 216.008 | 714 | 534 | 180 | 337 | 348 |
| 12 | Edward Kambour | 0.74650 | 0.52450 | 11.6492 | 0.7182 | 219.689 | 714 | 533 | 181 | 364 | 330 |
| 13 | ARGH Power Ratings | 0.74230 | 0.51045 | 12.2017 | 0.6674 | 239.155 | 714 | 530 | 184 | 342 | 328 |
| 14 | Stat Fox | 0.73950 | 0.50382 | 11.6625 | 1.6683 | 221.267 | 714 | 528 | 186 | 330 | 325 |
| 15 | Dunkel Index | 0.73913 | 0.49712 | 11.8454 | 1.1091 | 227.489 | 713 | 527 | 186 | 345 | 349 |
| 16 | Computer Adjusted Line | 0.73810 | 0.51661 | 11.2612 | 1.0917 | 206.163 | 714 | 527 | 187 | 140 | 131 |
| 17 | Sagarin Predictive | 0.73810 | 0.50431 | 11.7529 | 0.6497 | 224.315 | 714 | 527 | 187 | 351 | 345 |
| 18 | Marsee | 0.73773 | 0.47626 | 12.6858 | 1.9677 | 262.714 | 713 | 526 | 187 | 321 | 353 |
| 19 | Nutshell Girl | 0.73669 | 0.52586 | 12.2668 | -0.1733 | 244.838 | 714 | 526 | 188 | 366 | 330 |
| 20 | Born Power Index | 0.73669 | 0.48991 | 12.0834 | 0.4529 | 240.313 | 714 | 526 | 188 | 340 | 354 |
| 21 | Keeper | 0.73669 | 0.49640 | 12.0717 | 1.5916 | 234.506 | 714 | 526 | 188 | 345 | 350 |
| 22 | NutShell Combo | 0.73669 | 0.52450 | 11.7003 | 0.1868 | 221.595 | 714 | 526 | 188 | 364 | 330 |
| 23 | Ashby AccuRatings | 0.73669 | 0.49163 | 11.7563 | 0.1601 | 224.631 | 714 | 526 | 188 | 323 | 334 |
| 24 | Line (updated) | 0.73389 | | 11.2654 | 1.1814 | 206.152 | 714 | 524 | 190 | | |
| 25 | Linear Regression | 0.73387 | 0.52762 | 11.8922 | 0.9067 | 228.930 | 372 | 273 | 99 | 191 | 171 |
| 26 | Howell | 0.73352 | 0.51740 | 12.0022 | 0.0065 | 232.849 | 713 | 523 | 190 | 342 | 319 |
| 27 | Line (opening) | 0.73249 | 0.49742 | 11.4174 | 0.8249 | 212.248 | 714 | 523 | 191 | 289 | 292 |
| 28 | Lee Burdorf | 0.73249 | 0.50363 | 12.0581 | 0.4940 | 238.303 | 714 | 523 | 191 | 347 | 342 |
| 29 | Billingsley | 0.73249 | 0.52874 | 12.5430 | -0.0059 | 253.321 | 714 | 523 | 191 | 368 | 328 |
| 30 | Covers.com | 0.73249 | 0.53488 | 12.0912 | 0.0708 | 236.518 | 714 | 523 | 191 | 368 | 320 |
| 31 | CPA Rankings | 0.73204 | 0.50539 | 12.2632 | 0.1163 | 244.168 | 668 | 489 | 179 | 328 | 321 |
| 32 | Anderson/Hester * | 0.73118 | 0.49307 | 12.5199 | 0.7481 | 249.200 | 372 | 272 | 100 | 178 | 183 |
| 33 | Schmidt Comp. Ratings | 0.73109 | 0.49713 | 12.0536 | 0.1328 | 238.557 | 714 | 522 | 192 | 346 | 350 |
| 34 | Bassett Model | 0.72996 | 0.48918 | 12.4607 | 1.8703 | 248.630 | 711 | 519 | 192 | 339 | 354 |
| 35 | Payne Power Ratings | 0.72917 | 0.49286 | 12.4982 | -0.1746 | 255.153 | 576 | 420 | 156 | 276 | 284 |
| 36 | NutShell Sports | 0.72829 | 0.51437 | 12.2180 | 0.5398 | 241.651 | 714 | 520 | 194 | 358 | 338 |
| 37 | Bihl System | 0.72706 | 0.48786 | 11.8486 | 0.8618 | 227.504 | 425 | 309 | 116 | 201 | 211 |
| 38 | Beck Elo | 0.72689 | 0.50794 | 12.0890 | 0.2810 | 239.203 | 714 | 519 | 195 | 352 | 341 |
| 39 | Sagarin | 0.72689 | 0.50000 | 11.9533 | 0.4593 | 234.340 | 714 | 519 | 195 | 348 | 348 |
| 40 | Dave Congrove | 0.72689 | 0.51006 | 12.0814 | -0.1209 | 235.237 | 714 | 519 | 195 | 355 | 341 |
| 41 | Least Squares w/ HFA | 0.72581 | 0.52210 | 13.7862 | 0.7620 | 311.808 | 372 | 270 | 102 | 189 | 173 |
| 42 | Stephen Kerns | 0.72549 | 0.52586 | 12.5291 | 0.7475 | 256.894 | 714 | 518 | 196 | 366 | 330 |
| 43 | Frank Alder | 0.72549 | 0.49856 | 12.6280 | -0.4457 | 260.100 | 714 | 518 | 196 | 347 | 349 |
| 44 | Super List | 0.72549 | 0.50504 | 13.5815 | 0.9087 | 292.143 | 714 | 518 | 196 | 351 | 344 |
| 45 | Massey Consensus | 0.72549 | 0.50575 | 12.0517 | 0.6875 | 237.293 | 714 | 518 | 196 | 352 | 344 |
| 46 | CPA Retro | 0.72455 | 0.50462 | 13.3387 | -0.0054 | 286.861 | 668 | 484 | 184 | 328 | 322 |
| 47 | PerformanZ Ratings | 0.72409 | 0.48276 | 12.6587 | -0.0329 | 264.096 | 714 | 517 | 197 | 336 | 360 |
| 48 | Imes Comprank | 0.72345 | 0.48473 | 12.4674 | -0.0253 | 250.253 | 499 | 361 | 138 | 238 | 253 |
| 49 | Harmon Forcast | 0.72321 | 0.48967 | 12.2321 | -1.4048 | 247.691 | 672 | 486 | 186 | 308 | 321 |
| 50 | Catherwood Ratings | 0.72269 | 0.50000 | 11.9272 | 1.2661 | 236.606 | 714 | 516 | 198 | 326 | 326 |
| 51 | Logistic Regression | 0.71774 | 0.53591 | 15.0370 | -2.4933 | 369.468 | 372 | 267 | 105 | 194 | 168 |
| 52 | DP Dwiggins | 0.71196 | 0.51593 | 12.4536 | -3.3892 | 250.857 | 677 | 482 | 195 | 340 | 319 |
| 53 | Warren Claassen | 0.70868 | 0.50431 | 12.9084 | -0.4963 | 270.781 | 714 | 506 | 208 | 351 | 345 |
| 54 | Sagarin Elo | 0.70728 | 0.50718 | 12.7487 | 0.2918 | 263.889 | 714 | 505 | 209 | 353 | 343 |
| 55 | Wolfe * | 0.70699 | 0.49448 | 13.4698 | 1.5001 | 288.803 | 372 | 263 | 109 | 179 | 183 |
| 56 | Sportrends | 0.70555 | 0.49319 | 12.7319 | -0.1486 | 259.673 | 703 | 496 | 207 | 326 | 335 |
| 57 | TW Rankings | 0.70152 | 0.50236 | 13.0547 | -0.1404 | 283.666 | 660 | 463 | 197 | 319 | 316 |
| 58 | CF By the Numbers | 0.69968 | 0.43902 | 11.9457 | -0.5272 | 228.929 | 313 | 219 | 94 | 126 | 161 |
| 59 | Colley Rankings * | 0.69892 | 0.50276 | 12.9231 | 0.8179 | 270.791 | 372 | 260 | 112 | 182 | 180 |
| 60 | Martien Maas | 0.68821 | 0.49216 | 13.0766 | 0.4696 | 276.537 | 526 | 362 | 164 | 251 | 259 |
| 61 | Tom Benson | 0.67556 | 0.48703 | 14.9517 | 3.2272 | 341.119 | 712 | 481 | 231 | 338 | 356 |
* This system does not make predictions. I make predictions for this
system by translating it to a new scale that allows for making predictions.
Retrodictive records are found by taking the ratings from the current week
and applying them to the entire season to date.
The ideal system would be one that has the highest correct game decisions,
has the smallest mean error(deviation from the actual game result), and has
a bias of zero.
Mean Error = average[abs(prediction-actual)]
Bias = agerage(prediction - actual)
Std. = Standard Deviation of individual game biases