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 |
|---|---|---|---|
| ali_zp | 4 | 1823 | 824 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| Odd | 0.234 | 0.407 | 0.440 | 103.5 | -79 | 175 | 1695 | 1695 | 5662 |
| EloSRM | 0.222 | 0.411 | 0.444 | 108.3 | -94 | 185 | 1823 | 1823 | 5592 |
| initial | 0.219 | 0.451 | 0.481 | 54.4 | -56 | 80 | 1306 | 1306 | 5803 |
| SRMFix | 0.232 | 0.489 | 0.510 | 77.9 | -119 | 89 | 1273 | 1273 | 6256 |
| SRM | -0.095 | 0.602 | 0.779 | 156.0 | -479 | 115 | 824 | 824 | 8360 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2009-05-12 | SRM 440 | 2 | 417 | 491.98 | 0.24 | 52 | 1823 | 5592 | 9 | 824 | 8360 |
| 3 | 2009-02-28 | TCO09 Qual 2 | 1 | 800 | 1,287.37 | 0.69 | 185 | 1771 | 6187 | 115 | 815 | 9176 |
| 2 | 2008-11-06 | SRM 424 | 2 | 464 | 588.14 | 0.34 | 102 | 1586 | 8375 | -21 | 700 | 10720 |
| 1 | 2008-10-02 | SRM 420 | 2 | 640 | 527.42 | -0.38 | -94 | 1484 | 11332 | -479 | 721 | 10871 |