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 |
|---|---|---|---|
| roksana | 2 | 1588 | 636 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | -0.227 | 0.340 | 0.409 | 40.9 | -68 | 14 | 1214 | 1145 | 11249 |
| SRMFix | -0.285 | 0.342 | 0.446 | 57.9 | -102 | 14 | 1214 | 1112 | 10407 |
| EloSRM | -0.219 | 0.419 | 0.473 | 97.1 | -99 | 96 | 1686 | 1588 | 8492 |
| Odd | -0.194 | 0.430 | 0.472 | 101.4 | -91 | 112 | 1559 | 1468 | 8532 |
| SRM | -1.067 | 1.067 | 1.073 | 282.0 | -362 | -202 | 998 | 636 | 11497 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-01-21 | SRM 433 | 2 | 811 | 521.30 | -0.64 | -99 | 1588 | 8492 | -362 | 636 | 11497 |
| 1 | 2009-01-06 | SRM 432 | 2 | 395 | 453.90 | 0.20 | 96 | 1686 | 7278 | -202 | 998 | 6512 |