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 | Covers.com | 0.73249 | 0.53488 | 12.0912 | 0.0708 | 236.518 | 714 | 523 | 191 | 368 | 320 |
| 2 | Billingsley | 0.73249 | 0.52874 | 12.5430 | -0.0059 | 253.321 | 714 | 523 | 191 | 368 | 328 |
| 3 | Nutshell Girl | 0.73669 | 0.52586 | 12.2668 | -0.1733 | 244.838 | 714 | 526 | 188 | 366 | 330 |
| 4 | Stephen Kerns | 0.72549 | 0.52586 | 12.5291 | 0.7475 | 256.894 | 714 | 518 | 196 | 366 | 330 |
| 5 | NutShell Combo | 0.73669 | 0.52450 | 11.7003 | 0.1868 | 221.595 | 714 | 526 | 188 | 364 | 330 |
| 6 | Edward Kambour | 0.74650 | 0.52450 | 11.6492 | 0.7182 | 219.689 | 714 | 533 | 181 | 364 | 330 |
| 7 | Dokter Entropy | 0.75070 | 0.51655 | 11.4444 | 0.7752 | 212.719 | 714 | 536 | 178 | 359 | 336 |
| 8 | Moore Power Ratings | 0.74930 | 0.51729 | 11.7112 | 0.5256 | 225.807 | 714 | 535 | 179 | 359 | 335 |
| 9 | NutShell Sports | 0.72829 | 0.51437 | 12.2180 | 0.5398 | 241.651 | 714 | 520 | 194 | 358 | 338 |
| 10 | Dave Congrove | 0.72689 | 0.51006 | 12.0814 | -0.1209 | 235.237 | 714 | 519 | 195 | 355 | 341 |
| 11 | Billingsley+ | 0.74930 | 0.50935 | 11.7586 | 0.4208 | 228.385 | 714 | 535 | 179 | 354 | 341 |
| 12 | Sagarin Elo | 0.70728 | 0.50718 | 12.7487 | 0.2918 | 263.889 | 714 | 505 | 209 | 353 | 343 |
| 13 | Beck Elo | 0.72689 | 0.50794 | 12.0890 | 0.2810 | 239.203 | 714 | 519 | 195 | 352 | 341 |
| 14 | Massey Consensus | 0.72549 | 0.50575 | 12.0517 | 0.6875 | 237.293 | 714 | 518 | 196 | 352 | 344 |
| 15 | Super List | 0.72549 | 0.50504 | 13.5815 | 0.9087 | 292.143 | 714 | 518 | 196 | 351 | 344 |
| 16 | Warren Claassen | 0.70868 | 0.50431 | 12.9084 | -0.4963 | 270.781 | 714 | 506 | 208 | 351 | 345 |
| 17 | Sagarin Predictive | 0.73810 | 0.50431 | 11.7529 | 0.6497 | 224.315 | 714 | 527 | 187 | 351 | 345 |
| 18 | System Average | 0.75210 | 0.50144 | 11.5723 | 0.4370 | 217.049 | 714 | 537 | 177 | 349 | 347 |
| 19 | Sagarin | 0.72689 | 0.50000 | 11.9533 | 0.4593 | 234.340 | 714 | 519 | 195 | 348 | 348 |
| 20 | Laz Index | 0.74930 | 0.50144 | 11.6667 | 0.1511 | 221.865 | 714 | 535 | 179 | 348 | 346 |
| 21 | Frank Alder | 0.72549 | 0.49856 | 12.6280 | -0.4457 | 260.100 | 714 | 518 | 196 | 347 | 349 |
| 22 | Lee Burdorf | 0.73249 | 0.50363 | 12.0581 | 0.4940 | 238.303 | 714 | 523 | 191 | 347 | 342 |
| 23 | Schmidt Comp. Ratings | 0.73109 | 0.49713 | 12.0536 | 0.1328 | 238.557 | 714 | 522 | 192 | 346 | 350 |
| 24 | Atomic Football | 0.75210 | 0.49713 | 11.5120 | 0.8409 | 216.111 | 714 | 537 | 177 | 346 | 350 |
| 25 | Keeper | 0.73669 | 0.49640 | 12.0717 | 1.5916 | 234.506 | 714 | 526 | 188 | 345 | 350 |
| 26 | Dunkel Index | 0.73913 | 0.49712 | 11.8454 | 1.1091 | 227.489 | 713 | 527 | 186 | 345 | 349 |
| 27 | ARGH Power Ratings | 0.74230 | 0.51045 | 12.2017 | 0.6674 | 239.155 | 714 | 530 | 184 | 342 | 328 |
| 28 | Howell | 0.73352 | 0.51740 | 12.0022 | 0.0065 | 232.849 | 713 | 523 | 190 | 342 | 319 |
| 29 | DP Dwiggins | 0.71196 | 0.51593 | 12.4536 | -3.3892 | 250.857 | 677 | 482 | 195 | 340 | 319 |
| 30 | Born Power Index | 0.73669 | 0.48991 | 12.0834 | 0.4529 | 240.313 | 714 | 526 | 188 | 340 | 354 |
| 31 | Bassett Model | 0.72996 | 0.48918 | 12.4607 | 1.8703 | 248.630 | 711 | 519 | 192 | 339 | 354 |
| 32 | Tom Benson | 0.67556 | 0.48703 | 14.9517 | 3.2272 | 341.119 | 712 | 481 | 231 | 338 | 356 |
| 33 | System Median | 0.74790 | 0.49197 | 11.5495 | 0.4387 | 216.008 | 714 | 534 | 180 | 337 | 348 |
| 34 | PerformanZ Ratings | 0.72409 | 0.48276 | 12.6587 | -0.0329 | 264.096 | 714 | 517 | 197 | 336 | 360 |
| 35 | Pigskin Index | 0.75630 | 0.49475 | 11.5405 | 0.6110 | 216.060 | 714 | 540 | 174 | 330 | 337 |
| 36 | Stat Fox | 0.73950 | 0.50382 | 11.6625 | 1.6683 | 221.267 | 714 | 528 | 186 | 330 | 325 |
| 37 | CPA Rankings | 0.73204 | 0.50539 | 12.2632 | 0.1163 | 244.168 | 668 | 489 | 179 | 328 | 321 |
| 38 | CPA Retro | 0.72455 | 0.50462 | 13.3387 | -0.0054 | 286.861 | 668 | 484 | 184 | 328 | 322 |
| 39 | Catherwood Ratings | 0.72269 | 0.50000 | 11.9272 | 1.2661 | 236.606 | 714 | 516 | 198 | 326 | 326 |
| 40 | Sportrends | 0.70555 | 0.49319 | 12.7319 | -0.1486 | 259.673 | 703 | 496 | 207 | 326 | 335 |
| 41 | Hank Trexler | 0.75035 | 0.49238 | 11.8850 | -0.0084 | 231.237 | 713 | 535 | 178 | 323 | 333 |
| 42 | Ashby AccuRatings | 0.73669 | 0.49163 | 11.7563 | 0.1601 | 224.631 | 714 | 526 | 188 | 323 | 334 |
| 43 | Marsee | 0.73773 | 0.47626 | 12.6858 | 1.9677 | 262.714 | 713 | 526 | 187 | 321 | 353 |
| 44 | TW Rankings | 0.70152 | 0.50236 | 13.0547 | -0.1404 | 283.666 | 660 | 463 | 197 | 319 | 316 |
| 45 | Harmon Forcast | 0.72321 | 0.48967 | 12.2321 | -1.4048 | 247.691 | 672 | 486 | 186 | 308 | 321 |
| 46 | NationalSportsRankings | 0.74848 | 0.48460 | 11.7592 | 0.3506 | 225.182 | 656 | 491 | 165 | 299 | 318 |
| 47 | Line (opening) | 0.73249 | 0.49742 | 11.4174 | 0.8249 | 212.248 | 714 | 523 | 191 | 289 | 292 |
| 48 | Payne Power Ratings | 0.72917 | 0.49286 | 12.4982 | -0.1746 | 255.153 | 576 | 420 | 156 | 276 | 284 |
| 49 | Martien Maas | 0.68821 | 0.49216 | 13.0766 | 0.4696 | 276.537 | 526 | 362 | 164 | 251 | 259 |
| 50 | Imes Comprank | 0.72345 | 0.48473 | 12.4674 | -0.0253 | 250.253 | 499 | 361 | 138 | 238 | 253 |
| 51 | Bihl System | 0.72706 | 0.48786 | 11.8486 | 0.8618 | 227.504 | 425 | 309 | 116 | 201 | 211 |
| 52 | Logistic Regression | 0.71774 | 0.53591 | 15.0370 | -2.4933 | 369.468 | 372 | 267 | 105 | 194 | 168 |
| 53 | Linear Regression | 0.73387 | 0.52762 | 11.8922 | 0.9067 | 228.930 | 372 | 273 | 99 | 191 | 171 |
| 54 | Least Squares w/ HFA | 0.72581 | 0.52210 | 13.7862 | 0.7620 | 311.808 | 372 | 270 | 102 | 189 | 173 |
| 55 | Massey * | 0.77688 | 0.51105 | 11.8020 | 1.2431 | 223.550 | 372 | 289 | 83 | 185 | 177 |
| 56 | Colley Rankings * | 0.69892 | 0.50276 | 12.9231 | 0.8179 | 270.791 | 372 | 260 | 112 | 182 | 180 |
| 57 | Wolfe * | 0.70699 | 0.49448 | 13.4698 | 1.5001 | 288.803 | 372 | 263 | 109 | 179 | 183 |
| 58 | Anderson/Hester * | 0.73118 | 0.49307 | 12.5199 | 0.7481 | 249.200 | 372 | 272 | 100 | 178 | 183 |
| 59 | Computer Adjusted Line | 0.73810 | 0.51661 | 11.2612 | 1.0917 | 206.163 | 714 | 527 | 187 | 140 | 131 |
| 60 | CF By the Numbers | 0.69968 | 0.43902 | 11.9457 | -0.5272 | 228.929 | 313 | 219 | 94 | 126 | 161 |
| 61 | Line (updated) | 0.73389 | | 11.2654 | 1.1814 | 206.152 | 714 | 524 | 190 | | |
* 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