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 |
|---|---|---|---|
| Osman_Ahmed | 2 | 1742 | 816 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | -0.178 | 0.359 | 0.401 | 65.9 | -88 | 44 | 1244 | 1156 | 8042 |
| initial | -0.105 | 0.359 | 0.374 | 43.2 | -56 | 31 | 1231 | 1175 | 8315 |
| EloSRM | -0.118 | 0.442 | 0.458 | 104.4 | -81 | 128 | 1823 | 1742 | 7744 |
| SRM | -0.877 | 0.877 | 0.886 | 192.0 | -240 | -144 | 1056 | 816 | 7389 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2011-03-19 | SRM 500 | 2 | 851 | 647.79 | -0.56 | -81 | 1742 | 7744 | -240 | 816 | 7389 |
| 1 | 2011-01-27 | SRM 495 | 2 | 597 | 747.78 | 0.32 | 128 | 1823 | 6792 | -144 | 1056 | 4631 |