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 |
|---|---|---|---|
| icso | 5 | 2197 | 1226 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.796 | 0.921 | 1.124 | 118.0 | -43 | 254 | 1704 | 1704 | 2882 |
| initial | 0.924 | 0.924 | 1.195 | 111.2 | 3 | 228 | 1756 | 1756 | 2857 |
| EloSRM | 0.795 | 0.931 | 1.090 | 122.1 | -15 | 259 | 2197 | 2197 | 2958 |
| Odd | 0.822 | 0.938 | 1.100 | 122.4 | -5 | 253 | 2065 | 2065 | 2959 |
| SRM | 0.654 | 0.962 | 1.094 | 72.4 | -127 | 76 | 1226 | 1226 | 2899 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 2009-09-23 | SRM 449 | 2 | 136 | 228.57 | 0.75 | 64 | 2197 | 2958 | 43 | 1226 | 2899 |
| 4 | 2009-09-10 | SRM 448 | 2 | 112 | 312.78 | 1.48 | 130 | 2132 | 3316 | 75 | 1183 | 3268 |
| 3 | 2009-08-08 | SRM 446 | 2 | 374 | 295.37 | -0.34 | -15 | 2002 | 4115 | -41 | 1108 | 3818 |
| 2 | 2009-07-23 | SRM 445 | 2 | 174 | 570.41 | 1.71 | 259 | 2017 | 4043 | 76 | 1149 | 3491 |
| 1 | 2009-07-08 | SRM 444 | 2 | 522 | 675.93 | 0.37 | 142 | 1759 | 6150 | -127 | 1073 | 4127 |