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 |
|---|---|---|---|
| Chechulina | 2 | 1993 | 1014 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.343 | 0.343 | 0.392 | 62.2 | 37 | 87 | 1324 | 1324 | 7190 |
| EloSRM | 0.385 | 0.385 | 0.397 | 112.2 | 106 | 118 | 1993 | 1993 | 7079 |
| SRM | -0.391 | 0.391 | 0.549 | 93.0 | -152 | -34 | 1048 | 1014 | 5973 |
| initial | 0.429 | 0.429 | 0.474 | 51.6 | 27 | 76 | 1303 | 1303 | 7502 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2012-07-21 | SRM 550 | 2 | 488 | 682.16 | 0.48 | 106 | 1993 | 7079 | -34 | 1014 | 5973 |
| 1 | 2012-07-09 | SRM 549 | 2 | 401 | 488.89 | 0.29 | 118 | 1886 | 8171 | -152 | 1048 | 5607 |