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 |
|---|---|---|---|
| zhangdw | 2 | 1580 | 984 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | -0.039 | 0.129 | 0.135 | 15.6 | -20 | 11 | 1211 | 1191 | 5850 |
| EloSRM | -0.021 | 0.133 | 0.135 | 37.8 | -12 | 64 | 1591 | 1580 | 5770 |
| SRMFix | -0.062 | 0.144 | 0.157 | 27.6 | -35 | 20 | 1220 | 1185 | 5680 |
| SRM | -0.431 | 0.431 | 0.525 | 108.0 | -171 | -45 | 1155 | 984 | 4200 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2007-10-13 | SRM 371 | 2 | 372 | 474.80 | -0.16 | -12 | 1580 | 5770 | -171 | 984 | 4200 |
| 1 | 2007-10-09 | College Tour SRM 370 | 1 | 125 | 135.12 | 0.11 | 64 | 1591 | 5665 | -45 | 1155 | 2976 |