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 |
|---|---|---|---|
| yanglin | 4 | 2089 | 1129 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.753 | 0.893 | 1.156 | 115.6 | -47 | 239 | 1568 | 1568 | 3618 |
| initial | 0.841 | 0.895 | 1.197 | 107.8 | -13 | 263 | 1605 | 1605 | 3482 |
| EloSRM | 0.750 | 0.923 | 1.135 | 142.9 | -38 | 228 | 2089 | 2089 | 3418 |
| Odd | 0.769 | 0.927 | 1.138 | 139.7 | -28 | 220 | 1952 | 1952 | 3520 |
| SRM | 0.261 | 0.984 | 1.087 | 114.2 | -146 | 107 | 1129 | 1129 | 4380 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2009-02-28 | TCO09 Qual 2 | 1 | 525 | 930.82 | 0.83 | 123 | 2089 | 3418 | 86 | 1129 | 4380 |
| 3 | 2009-02-12 | SRM 435 | 2 | 90 | 366.54 | 2.03 | 228 | 1966 | 4386 | 107 | 1043 | 5816 |
| 2 | 2009-02-07 | SRM 434 | 2 | 598 | 473.83 | -0.34 | -38 | 1738 | 6722 | -146 | 936 | 7665 |
| 1 | 2009-01-21 | SRM 433 | 2 | 422 | 594.30 | 0.49 | 182 | 1775 | 6288 | -118 | 1082 | 5486 |