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 |
|---|---|---|---|
| praff | 4 | 1836 | 755 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.026 | 0.418 | 0.420 | 50.4 | -47 | 59 | 1259 | 1213 | 8292 |
| SRMFix | -0.044 | 0.446 | 0.450 | 73.4 | -86 | 102 | 1302 | 1198 | 8230 |
| Odd | -0.014 | 0.510 | 0.517 | 106.2 | -60 | 212 | 1687 | 1674 | 7870 |
| EloSRM | -0.016 | 0.520 | 0.522 | 112.0 | -67 | 195 | 1836 | 1836 | 7804 |
| SRM | -0.491 | 0.597 | 0.658 | 112.8 | -213 | 3 | 1110 | 755 | 9289 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2011-10-04 | SRM 520 | 2 | 622 | 844.94 | 0.44 | 129 | 1836 | 7804 | 3 | 755 | 9289 |
| 3 | 2009-12-22 | SRM 456 | 2 | 573 | 434.37 | -0.53 | -57 | 1706 | 6440 | -145 | 752 | 7311 |
| 2 | 2009-12-17 | Member SRM 455 | 2 | 586 | 496.53 | -0.54 | -67 | 1764 | 6004 | -213 | 897 | 5650 |
| 1 | 2009-11-25 | SRM 453.5 | 2 | 388 | 575.07 | 0.57 | 195 | 1830 | 5569 | -90 | 1110 | 3838 |