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 |
|---|---|---|---|
| ACM27 | 2 | 2009 | 1055 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.639 | 0.640 | 0.905 | 96.7 | 0 | 193 | 1393 | 1393 | 5274 |
| initial | 0.695 | 0.695 | 0.938 | 83.7 | 8 | 159 | 1367 | 1367 | 5463 |
| EloSRM | 0.721 | 0.721 | 0.935 | 172.3 | 69 | 276 | 2009 | 2009 | 4967 |
| Odd | 0.741 | 0.741 | 0.935 | 178.8 | 88 | 270 | 1851 | 1851 | 5097 |
| SRM | -0.074 | 0.849 | 0.852 | 125.5 | -198 | 53 | 1055 | 1055 | 4524 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2010-12-08 | SRM 490 | 2 | 263 | 654.64 | 1.32 | 276 | 2009 | 4967 | 53 | 1055 | 4524 |
| 1 | 2010-06-17 | SRM 473 | 2 | 378 | 412.78 | 0.13 | 69 | 1733 | 6608 | -198 | 1002 | 4652 |