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 |
|---|---|---|---|
| Potemkinb | 3 | 1644 | 455 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | 0.105 | 0.446 | 0.531 | 110.8 | -94 | 221 | 1644 | 1644 | 7198 |
| initial | -0.060 | 0.481 | 0.511 | 57.9 | -69 | 76 | 1178 | 1178 | 7428 |
| SRMFix | -0.044 | 0.508 | 0.533 | 83.1 | -87 | 91 | 1134 | 1134 | 7752 |
| SRM | -0.522 | 0.932 | 0.969 | 289.7 | -495 | 62 | 888 | 455 | 9779 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 2009-11-25 | SRM 453.5 | 2 | 405 | 718.59 | 0.83 | 221 | 1644 | 7198 | 62 | 455 | 9779 |
| 2 | 2009-08-25 | SRM 447 | 2 | 947 | 727.87 | -0.38 | -94 | 1422 | 10216 | -495 | 393 | 10197 |
| 1 | 2007-11-20 | SRM 378 | 2 | 557 | 508.22 | -0.13 | -17 | 1517 | 6732 | -312 | 888 | 5530 |