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 |
|---|---|---|---|
| liaozhengzhong | 4 | 1843 | 1015 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | 0.233 | 0.666 | 0.894 | 123.8 | -84 | 342 | 1928 | 1843 | 5360 |
| initial | 0.328 | 0.675 | 0.878 | 81.2 | -78 | 189 | 1436 | 1358 | 5135 |
| Odd | 0.235 | 0.687 | 0.908 | 123.7 | -74 | 345 | 1809 | 1735 | 5257 |
| SRMFix | 0.086 | 0.698 | 0.927 | 117.8 | -107 | 325 | 1525 | 1379 | 5012 |
| SRM | 0.031 | 0.739 | 0.865 | 190.2 | -374 | 288 | 1488 | 1015 | 4637 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2009-06-23 | SRM 443 | 2 | 509 | 295.75 | -0.78 | -84 | 1843 | 5360 | -94 | 1015 | 4637 |
| 3 | 2008-07-31 | SRM 412 | 2 | 289 | 333.63 | 0.20 | 48 | 1928 | 4480 | -5 | 1109 | 5575 |
| 2 | 2008-05-28 | SRM 403 | 1 | 410 | 393.97 | -0.08 | -21 | 1880 | 4667 | -374 | 1114 | 4690 |
| 1 | 2008-05-24 | College Tour Beijing | 1 | 175 | 527.71 | 1.59 | 342 | 1901 | 4373 | 288 | 1488 | 1483 |