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 |
|---|---|---|---|
| chengchunyang | 4 | 2455 | 1226 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRM | 0.689 | 0.849 | 1.293 | 60.0 | -106 | 105 | 1228 | 1226 | 2377 |
| EloSRM | 0.849 | 0.865 | 1.272 | 117.8 | -5 | 261 | 2455 | 2455 | 2318 |
| Odd | 0.848 | 0.866 | 1.267 | 123.3 | -6 | 284 | 2183 | 2183 | 2345 |
| SRMFix | 0.881 | 0.899 | 1.313 | 117.0 | -6 | 234 | 1656 | 1656 | 2151 |
| initial | 1.033 | 1.040 | 1.434 | 125.3 | -2 | 320 | 1698 | 1698 | 2044 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2017-07-12 | SRM 718 | 2 | 15 | 76.90 | 2.36 | 169 | 2455 | 2318 | 105 | 1226 | 2377 |
| 3 | 2017-06-30 | SRM 717 | 2 | 112 | 121.82 | 0.12 | 37 | 2286 | 3076 | -1 | 1121 | 2898 |
| 2 | 2017-06-26 | SRM 716 | 1 | 152 | 173.65 | -0.03 | -5 | 2249 | 3185 | -106 | 1122 | 2824 |
| 1 | 2016-12-13 | SRM 703 | 2 | 92 | 177.50 | 0.95 | 261 | 2253 | 3774 | 28 | 1228 | 2773 |