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 |
|---|---|---|---|
| romanch47 | 3 | 1772 | 810 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.048 | 0.341 | 0.367 | 56.1 | -73 | 59 | 1237 | 1223 | 6238 |
| initial | 0.097 | 0.344 | 0.359 | 41.4 | -44 | 55 | 1235 | 1235 | 6187 |
| EloSRM | 0.134 | 0.407 | 0.415 | 113.3 | -69 | 146 | 1772 | 1772 | 5952 |
| SRM | -0.535 | 0.670 | 0.751 | 130.7 | -229 | 1 | 1038 | 810 | 6648 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 2009-12-17 | Member SRM 455 | 2 | 446 | 634.43 | 0.51 | 146 | 1772 | 5952 | 1 | 810 | 6648 |
| 2 | 2008-11-25 | SRM 427 | 2 | 497 | 413.97 | -0.41 | -69 | 1626 | 7778 | -229 | 809 | 9265 |
| 1 | 2008-07-31 | SRM 412 | 2 | 477 | 588.12 | 0.30 | 126 | 1694 | 6916 | -162 | 1038 | 6329 |