4.75 Comparison of past and present is one of the most fascinating applications of the rating system.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| ZhangFengFree | 2 | 1498 | 583 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| Odd | -0.304 | 0.304 | 0.315 | 44.7 | -59 | -31 | 1430 | 1371 | 9570 |
| EloSRM | -0.323 | 0.323 | 0.330 | 57.5 | -67 | -48 | 1565 | 1498 | 9550 |
| initial | -0.388 | 0.388 | 0.395 | 46.8 | -56 | -38 | 1162 | 1106 | 9962 |
| SRMFix | -0.392 | 0.392 | 0.393 | 77.9 | -86 | -70 | 1114 | 1044 | 10003 |
| SRM | -0.990 | 0.990 | 1.000 | 308.5 | -321 | -296 | 879 | 583 | 9487 |
| # | 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 | 738 | 582.87 | -0.39 | -67 | 1498 | 9550 | -296 | 583 | 9487 |
| 1 | 2009-06-13 | SRM 442 | 2 | 818 | 686.30 | -0.25 | -47 | 1565 | 8071 | -321 | 879 | 6426 |