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 |
|---|---|---|---|
| changzhijun | 2 | 1475 | 585 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | -0.329 | 0.329 | 0.335 | 69.4 | -90 | -49 | 1524 | 1475 | 9911 |
| SRMFix | -0.411 | 0.411 | 0.423 | 85.5 | -118 | -53 | 1082 | 1029 | 10076 |
| initial | -0.415 | 0.415 | 0.417 | 50.0 | -54 | -46 | 1146 | 1100 | 9932 |
| SRM | -0.984 | 0.984 | 1.063 | 307.5 | -431 | -184 | 769 | 585 | 9435 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-08-25 | SRM 447 | 2 | 771 | 703.98 | -0.27 | -49 | 1475 | 9911 | -184 | 585 | 9435 |
| 1 | 2009-06-23 | SRM 443 | 2 | 718 | 548.45 | -0.39 | -90 | 1524 | 9151 | -431 | 769 | 7848 |