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 |
|---|---|---|---|
| sonnyb | 2 | 1720 | 828 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | -0.066 | 0.085 | 0.107 | 23.8 | -13 | 34 | 1733 | 1720 | 8234 |
| initial | -0.100 | 0.100 | 0.113 | 12.1 | -18 | -6 | 1194 | 1176 | 8451 |
| Odd | -0.038 | 0.106 | 0.112 | 30.4 | -7 | 54 | 1569 | 1563 | 8309 |
| SRMFix | -0.136 | 0.136 | 0.138 | 27.4 | -28 | -27 | 1172 | 1145 | 8418 |
| SRM | -0.845 | 0.845 | 0.865 | 186.0 | -231 | -141 | 969 | 828 | 7450 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2011-05-11 | SRM 506 | 2 | 574 | 517.22 | -0.15 | -13 | 1720 | 8234 | -141 | 828 | 7450 |
| 1 | 2011-02-26 | SRM 498 | 2 | 768 | 778.28 | 0.02 | 34 | 1733 | 7714 | -231 | 969 | 5519 |