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 |
|---|---|---|---|
| Ptan | 4 | 2365 | 1099 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 1.597 | 1.900 | 2.548 | 228.8 | -42 | 519 | 2011 | 1969 | 2684 |
| EloSRM | 1.638 | 1.953 | 2.611 | 218.2 | -60 | 550 | 2424 | 2365 | 2830 |
| SRMFix | 1.561 | 1.984 | 2.587 | 230.8 | -70 | 495 | 1919 | 1855 | 2501 |
| SRM | 1.463 | 2.199 | 2.649 | 235.8 | -292 | 263 | 1329 | 1099 | 4424 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2011-03-30 | Member SRM 501 | 1 | 675 | 512.94 | -0.43 | -60 | 2365 | 2830 | -230 | 1099 | 4424 |
| 3 | 2011-02-26 | SRM 498 | 2 | 35 | 243.15 | 2.80 | 228 | 2424 | 2418 | 158 | 1329 | 2409 |
| 2 | 2010-11-30 | Member SRM 489 | 2 | 34 | 710.43 | 4.38 | 550 | 2196 | 3542 | 263 | 1171 | 3609 |
| 1 | 2010-10-21 | Member SRM 485 | 2 | 546 | 592.08 | -0.20 | -35 | 1646 | 7884 | -292 | 908 | 5753 |