4.75 Comparison of past and present is one of the most fascinating applications of the rating system.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| liyuantao | 1 | 2175 | 1395 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRM | 1.465 | 1.465 | 1.465 | 195.0 | 195 | 195 | 1395 | 1395 | 1847 |
| SRMFix | 2.354 | 2.354 | 2.354 | 451.8 | 452 | 452 | 1652 | 1652 | 3116 |
| initial | 2.409 | 2.409 | 2.409 | 290.1 | 290 | 290 | 1490 | 1490 | 4040 |
| EloSRM | 2.480 | 2.480 | 2.480 | 556.3 | 556 | 556 | 2175 | 2175 | 3032 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2009-07-23 | SRM 445 | 2 | 129 | 719.67 | 2.48 | 556 | 2175 | 3032 | 195 | 1395 | 1847 |