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 |
|---|---|---|---|
| Ringrain | 2 | 1724 | 922 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.088 | 0.128 | 0.155 | 15.4 | -5 | 26 | 1226 | 1221 | 6643 |
| SRMFix | 0.011 | 0.150 | 0.150 | 31.4 | -24 | 39 | 1239 | 1215 | 6581 |
| EloSRM | 0.051 | 0.236 | 0.241 | 64.7 | -12 | 117 | 1736 | 1724 | 6407 |
| Odd | 0.080 | 0.248 | 0.260 | 67.9 | -3 | 133 | 1597 | 1595 | 6454 |
| SRM | -0.690 | 0.690 | 0.691 | 139.0 | -149 | -129 | 1051 | 922 | 5768 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-08-08 | SRM 446 | 2 | 668 | 587.79 | -0.18 | -12 | 1724 | 6407 | -129 | 922 | 5768 |
| 1 | 2009-07-23 | SRM 445 | 2 | 590 | 719.64 | 0.29 | 117 | 1736 | 6334 | -149 | 1051 | 4297 |