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 |
|---|---|---|---|
| retrogradehuman | 4 | 1946 | 950 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | 0.471 | 0.568 | 0.728 | 113.3 | -37 | 203 | 1946 | 1946 | 4601 |
| SRMFix | 0.470 | 0.617 | 0.762 | 88.1 | -70 | 169 | 1413 | 1413 | 5059 |
| initial | 0.493 | 0.622 | 0.773 | 74.9 | -31 | 170 | 1437 | 1437 | 4615 |
| SRM | 0.099 | 0.626 | 0.748 | 105.0 | -302 | 75 | 950 | 950 | 7369 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2009-03-24 | SRM 437 | 2 | 310 | 363.37 | 0.23 | 47 | 1946 | 4601 | 10 | 950 | 7369 |
| 3 | 2009-01-21 | SRM 433 | 2 | 205 | 513.94 | 1.33 | 203 | 1899 | 5026 | 75 | 940 | 7615 |
| 2 | 2009-01-06 | SRM 432 | 2 | 336 | 483.15 | 0.52 | 166 | 1695 | 7170 | -33 | 865 | 8760 |
| 1 | 2008-07-19 | SRM 410 | 2 | 577 | 650.17 | -0.19 | -37 | 1530 | 9825 | -302 | 898 | 8418 |