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 |
|---|---|---|---|
| davidb | 7 | 1981 | 1194 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.522 | 0.568 | 0.744 | 66.8 | -22 | 215 | 1623 | 1623 | 1836 |
| initial | 0.576 | 0.576 | 0.764 | 69.4 | 2 | 183 | 1686 | 1686 | 1648 |
| EloSRM | 0.547 | 0.597 | 0.775 | 102.1 | 9 | 246 | 1981 | 1981 | 1722 |
| SRM | 0.472 | 0.733 | 0.836 | 58.0 | -189 | 59 | 1194 | 1194 | 1970 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 2006-03-06 | SRM 292 | 2 | 50 | 105.03 | 1.07 | 144 | 1981 | 1722 | 44 | 1194 | 1970 |
| 6 | 2004-10-16 | SRM 215 | 2 | 38 | 68.10 | 0.84 | 118 | 1837 | 1229 | 42 | 1150 | 1413 |
| 5 | 2003-10-09 | TCO '03 Qual. Round 2 | 1 | 244 | 237.22 | -0.04 | 10 | 1719 | 1280 | 12 | 1108 | 1392 |
| 4 | 2003-10-07 | TCO '03 Qual. Round 1 | 1 | 267 | 360.43 | 0.43 | 92 | 1710 | 1253 | 43 | 1096 | 1377 |
| 3 | 2003-10-01 | SRM 166 | 2 | 119 | 108.55 | -0.13 | 9 | 1617 | 1509 | -17 | 1053 | 1492 |
| 2 | 2002-08-12 | SRM 108 | 2 | 39 | 106.48 | 1.45 | 246 | 1608 | 1260 | 59 | 1070 | 1194 |
| 1 | 2002-08-07 | SRM 107 | 2 | 110 | 127.26 | 0.21 | 97 | 1362 | 2024 | -189 | 1011 | 1405 |