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 |
|---|---|---|---|
| tough | 1 | 1989 | 1232 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRM | 0.205 | 0.205 | 0.205 | 32.0 | 32 | 32 | 1232 | 1232 | 3248 |
| SRMFix | 1.187 | 1.187 | 1.187 | 256.1 | 256 | 256 | 1456 | 1456 | 4550 |
| initial | 1.257 | 1.257 | 1.257 | 151.4 | 151 | 151 | 1351 | 1351 | 5403 |
| EloSRM | 1.318 | 1.318 | 1.318 | 382.6 | 383 | 383 | 1989 | 1989 | 4217 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2009-04-30 | SRM 439 | 2 | 179 | 446.36 | 1.32 | 383 | 1989 | 4217 | 32 | 1232 | 3248 |