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 |
|---|---|---|---|
| Katyushka | 2 | 2301 | 1280 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRM | 1.162 | 1.800 | 2.143 | 297.0 | -257 | 337 | 1537 | 1280 | 2494 |
| initial | 1.944 | 1.983 | 2.777 | 238.8 | -5 | 473 | 1673 | 1668 | 3171 |
| SRMFix | 1.792 | 2.081 | 2.747 | 349.3 | -49 | 650 | 1850 | 1801 | 2449 |
| EloSRM | 1.868 | 2.131 | 2.834 | 394.2 | -56 | 732 | 2357 | 2301 | 2517 |
| Odd | 1.883 | 2.160 | 2.866 | 403.8 | -55 | 752 | 2221 | 2165 | 2509 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2010-01-19 | SRM 459 | 1 | 551 | 493.22 | -0.26 | -56 | 2301 | 2517 | -257 | 1280 | 2494 |
| 1 | 2009-09-10 | SRM 448 | 2 | 43 | 687.41 | 4.00 | 732 | 2357 | 2167 | 337 | 1537 | 1284 |