3.51 The challenge must be met if the rating system is to succeed, if it is to produce ratings that will satisfy the players and the users of the rating list.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| duke2co1 | 25 | 2859 | 1806 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | 0.538 | 0.705 | 1.166 | 60.4 | -24 | 323 | 2888 | 2859 | 852 |
| SRMFix | 0.574 | 0.727 | 1.209 | 51.6 | -29 | 364 | 2273 | 2239 | 927 |
| SRM | 0.531 | 0.762 | 1.217 | 62.4 | -123 | 196 | 1864 | 1806 | 776 |
| initial | 0.475 | 0.784 | 1.234 | 94.4 | -161 | 446 | 2856 | 2631 | 800 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 2011-06-21 | SRM 510 | 1 | 246 | 206.91 | -0.25 | -5 | 2859 | 852 | -15 | 1806 | 776 |
| 24 | 2011-06-02 | SRM 508 | 1 | 430 | 283.09 | -0.60 | -23 | 2865 | 818 | -43 | 1821 | 742 |
| 23 | 2011-02-01 | SRM 496 | 1 | 122 | 255.43 | 1.07 | 55 | 2888 | 697 | 75 | 1864 | 645 |
| 22 | 2010-11-18 | SRM 488 | 1 | 69 | 214.53 | 1.64 | 70 | 2833 | 773 | 114 | 1789 | 735 |
| 21 | 2010-09-25 | SRM 483 | 1 | 291 | 282.84 | -0.04 | 4 | 2763 | 919 | 14 | 1675 | 960 |
| 20 | 2010-09-15 | Member SRM 482 | 1 | 302 | 307.46 | 0.03 | 8 | 2759 | 938 | 20 | 1661 | 1002 |
| 19 | 2010-09-09 | SRM 481 | 1 | 388 | 321.34 | -0.65 | -24 | 2751 | 947 | -102 | 1641 | 1039 |
| 18 | 2010-08-26 | SRM 480 | 1 | 20 | 249.69 | 3.64 | 134 | 2775 | 877 | 196 | 1743 | 806 |
| 17 | 2010-08-04 | Member SRM 478 | 1 | 347 | 339.57 | -0.03 | 5 | 2641 | 1285 | 3 | 1547 | 1299 |
| 16 | 2010-07-28 | SRM 477 | 1 | 332 | 376.03 | 0.18 | 22 | 2636 | 1283 | 22 | 1544 | 1297 |
| 15 | 2010-07-17 | SRM 476 | 1 | 236 | 471.76 | 1.00 | 95 | 2613 | 1362 | 95 | 1522 | 1372 |
| 14 | 2010-07-06 | SRM 475 | 1 | 138 | 433.36 | 1.65 | 190 | 2519 | 1707 | 161 | 1427 | 1720 |
| 13 | 2010-06-30 | Member Single Round Match 474 | 1 | 309 | 371.02 | 0.26 | 64 | 2328 | 2528 | 30 | 1266 | 2579 |
| 12 | 2009-04-30 | SRM 439 | 1 | 380 | 362.17 | -0.20 | -20 | 2264 | 2536 | -65 | 1236 | 3208 |
| 11 | 2008-10-28 | SRM 423 | 1 | 237 | 312.44 | -0.04 | 2 | 2285 | 2268 | 2 | 1301 | 2720 |
| 10 | 2008-09-11 | SRM 417 | 1 | 455 | 500.50 | 0.14 | 24 | 2283 | 2233 | 10 | 1299 | 2836 |
| 9 | 2008-07-23 | SRM 411 | 1 | 371 | 379.43 | 0.03 | 11 | 2259 | 2295 | -9 | 1289 | 2900 |
| 8 | 2008-05-06 | SRM 401 | 1 | 410 | 518.04 | 0.34 | 47 | 2248 | 2221 | 46 | 1298 | 2549 |
| 7 | 2008-04-23 | SRM 399 | 1 | 219 | 300.33 | 0.02 | 9 | 2201 | 2401 | 13 | 1252 | 2611 |
| 6 | 2008-02-26 | SRM 391 | 2 | 30 | 122.72 | 2.03 | 108 | 2192 | 2409 | 98 | 1239 | 2762 |
| 5 | 2008-02-09 | TCO08 Qual 2 | 1 | 823 | 700.00 | -0.23 | -18 | 2084 | 2893 | -39 | 1141 | 3545 |
| 4 | 2008-01-24 | SRM 389 | 2 | 125 | 140.05 | 0.16 | 32 | 2102 | 2756 | 34 | 1180 | 3278 |
| 3 | 2007-12-27 | SRM 385 | 1 | 508 | 490.05 | -0.05 | -3 | 2069 | 2837 | -123 | 1146 | 3489 |
| 2 | 2007-12-11 | SRM 382 | 2 | 40 | 265.25 | 2.73 | 323 | 2073 | 2765 | 150 | 1269 | 2492 |
| 1 | 2007-12-08 | SRM 381 | 2 | 364 | 560.57 | 0.62 | 214 | 1750 | 4933 | -81 | 1119 | 3593 |