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 |
|---|---|---|---|
| acqf74 | 2 | 1658 | 828 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.004 | 0.228 | 0.228 | 27.5 | -27 | 28 | 1201 | 1201 | 7904 |
| Odd | 0.084 | 0.235 | 0.250 | 52.2 | -15 | 89 | 1527 | 1527 | 7639 |
| EloSRM | 0.073 | 0.241 | 0.252 | 60.2 | -31 | 90 | 1658 | 1658 | 7524 |
| SRMFix | -0.007 | 0.254 | 0.254 | 52.2 | -62 | 42 | 1180 | 1180 | 7913 |
| SRM | -0.599 | 0.599 | 0.686 | 186.0 | -301 | -71 | 899 | 828 | 9175 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-03-24 | SRM 437 | 2 | 511 | 635.13 | 0.31 | 90 | 1658 | 7524 | -71 | 828 | 9175 |
| 1 | 2009-03-11 | SRM 436 | 2 | 469 | 538.25 | -0.17 | -31 | 1569 | 8644 | -301 | 899 | 8176 |