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 |
|---|---|---|---|
| sql172 | 2 | 1886 | 1199 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.798 | 0.798 | 0.801 | 151.2 | 137 | 165 | 1502 | 1502 | 3855 |
| EloSRM | 0.808 | 0.808 | 0.809 | 175.5 | 150 | 201 | 1886 | 1886 | 4411 |
| SRM | 0.837 | 0.837 | 0.879 | 134.5 | -135 | 134 | 1334 | 1199 | 3298 |
| initial | 0.976 | 0.976 | 1.005 | 117.6 | 89 | 146 | 1435 | 1435 | 4237 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2008-05-03 | East China Round 1 | 1 | 250 | 453.82 | 0.86 | 150 | 1886 | 4411 | -135 | 1199 | 3298 |
| 1 | 2007-12-04 | College Tour SRM 380 | 1 | 81 | 136.73 | 0.76 | 201 | 1736 | 4973 | 134 | 1334 | 2023 |