4.75 Comparison of past and present is one of the most fascinating applications of the rating system.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| xqj90 | 1 | 1720 | 1028 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.072 | 0.072 | 0.072 | 17.7 | 18 | 18 | 1218 | 1218 | 6580 |
| initial | 0.125 | 0.125 | 0.125 | 15.0 | 15 | 15 | 1215 | 1215 | 6753 |
| EloSRM | 0.193 | 0.193 | 0.193 | 89.5 | 90 | 90 | 1720 | 1720 | 6531 |
| SRM | -0.812 | 0.812 | 0.812 | 172.0 | -172 | -172 | 1028 | 1028 | 4538 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2009-10-17 | SRM 450 | 2 | 583 | 666.34 | 0.19 | 90 | 1720 | 6531 | -172 | 1028 | 4538 |