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 |
|---|---|---|---|
| wrathful-horse | 4 | 1673 | 664 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | -0.002 | 0.359 | 0.415 | 43.2 | -60 | 74 | 1226 | 1199 | 7063 |
| Odd | 0.052 | 0.381 | 0.448 | 88.5 | -93 | 184 | 1573 | 1551 | 6977 |
| EloSRM | 0.054 | 0.386 | 0.451 | 94.4 | -108 | 190 | 1698 | 1673 | 7000 |
| SRMFix | 0.009 | 0.391 | 0.457 | 70.2 | -129 | 110 | 1197 | 1172 | 7171 |
| SRM | -0.253 | 0.565 | 0.791 | 165.5 | -548 | 63 | 715 | 664 | 8865 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2009-09-10 | SRM 448 | 2 | 730 | 616.05 | -0.24 | -25 | 1673 | 7000 | -48 | 664 | 8865 |
| 3 | 2009-06-23 | SRM 443 | 2 | 480 | 525.88 | 0.13 | 55 | 1698 | 6711 | -3 | 712 | 8434 |
| 2 | 2008-06-17 | SRM 406 | 2 | 283 | 475.64 | 0.75 | 190 | 1643 | 7208 | 63 | 715 | 10690 |
| 1 | 2008-05-28 | SRM 403 | 2 | 488 | 374.19 | -0.42 | -108 | 1452 | 10948 | -548 | 652 | 10797 |