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 |
|---|---|---|---|
| rizhang | 1 | 2122 | 1129 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRM | -0.403 | 0.403 | 0.403 | 71.0 | -71 | -71 | 1129 | 1129 | 5020 |
| SRMFix | 0.541 | 0.541 | 0.541 | 125.3 | 125 | 125 | 1325 | 1325 | 7252 |
| initial | 0.601 | 0.601 | 0.601 | 72.4 | 72 | 72 | 1272 | 1272 | 7940 |
| EloSRM | 0.652 | 0.652 | 0.652 | 221.4 | 221 | 221 | 2122 | 2122 | 7048 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2015-02-17 | SRM 650 | 2 | 184 | 289.23 | 0.65 | 221 | 2122 | 7048 | -71 | 1129 | 5020 |