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 |
|---|---|---|---|
| PianoWow | 4 | 1165 | 623 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| EloSRM | -0.140 | 0.140 | 0.159 | 22.5 | -48 | 10 | 1198 | 1165 | 1220 |
| SRMFix | -0.201 | 0.201 | 0.228 | 36.4 | -86 | -12 | 1114 | 1054 | 1345 |
| initial | -0.220 | 0.220 | 0.236 | 26.4 | -41 | -12 | 1159 | 1094 | 1355 |
| SRM | -0.446 | 0.446 | 0.554 | 144.2 | -406 | -27 | 794 | 623 | 1344 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2002-01-16 | SRM 58 | 2 | 221 | 222.08 | -0.19 | -21 | 1165 | 1220 | -97 | 623 | 1344 |
| 3 | 2002-01-15 | SRM 57 | 2 | 166 | 196.76 | -0.13 | -12 | 1186 | 1106 | -47 | 720 | 1231 |
| 2 | 2002-01-09 | SRM 56 | 2 | 115 | 163.50 | -0.02 | 10 | 1198 | 1011 | -27 | 767 | 1125 |
| 1 | 2002-01-07 | SRM 55 | 2 | 173 | 149.06 | -0.22 | -48 | 1188 | 1012 | -406 | 794 | 1054 |