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 |
|---|---|---|---|
| guiwuu | 2 | 1675 | 774 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.063 | 0.492 | 0.496 | 59.2 | -52 | 67 | 1215 | 1215 | 6888 |
| Odd | 0.151 | 0.499 | 0.522 | 103.7 | -65 | 143 | 1536 | 1536 | 7138 |
| EloSRM | 0.145 | 0.521 | 0.541 | 116.4 | -83 | 150 | 1675 | 1675 | 6978 |
| SRMFix | 0.091 | 0.563 | 0.571 | 108.1 | -110 | 106 | 1196 | 1196 | 6954 |
| SRM | -0.344 | 0.799 | 0.870 | 213.0 | -391 | -35 | 809 | 774 | 8156 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-05-27 | SRM 441 | 2 | 500 | 793.62 | 0.67 | 150 | 1675 | 6978 | -35 | 774 | 8156 |
| 1 | 2009-05-12 | SRM 440 | 2 | 728 | 641.54 | -0.38 | -83 | 1525 | 9657 | -391 | 809 | 8489 |