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 |
|---|---|---|---|
| DavidZh2009 | 2 | 1700 | 871 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.074 | 0.481 | 0.487 | 57.9 | -49 | 67 | 1218 | 1218 | 6798 |
| Odd | 0.153 | 0.493 | 0.516 | 104.9 | -52 | 158 | 1566 | 1566 | 6810 |
| EloSRM | 0.140 | 0.503 | 0.522 | 112.4 | -67 | 157 | 1700 | 1700 | 6672 |
| SRMFix | 0.086 | 0.528 | 0.535 | 101.6 | -104 | 100 | 1196 | 1196 | 6875 |
| SRM | -0.400 | 0.558 | 0.687 | 164.5 | -324 | -5 | 876 | 871 | 6685 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2009-06-23 | SRM 443 | 2 | 385 | 601.05 | 0.64 | 157 | 1700 | 6672 | -5 | 871 | 6685 |
| 1 | 2009-05-27 | SRM 441 | 2 | 727 | 684.62 | -0.36 | -67 | 1543 | 8775 | -324 | 876 | 6770 |