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