4.75 Comparison of past and present is one of the most fascinating applications of the rating system.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| HuYang | 29 | 1963 | 1002 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| initial | 0.136 | 0.610 | 0.751 | 73.5 | -140 | 202 | 1751 | 1676 | 3145 |
| EloSRM | 0.226 | 0.647 | 0.820 | 36.7 | -87 | 173 | 1963 | 1963 | 4439 |
| SRMFix | 0.248 | 0.655 | 0.841 | 46.1 | -123 | 173 | 1526 | 1526 | 3884 |
| SRM | 0.572 | 0.828 | 1.078 | 80.9 | -248 | 129 | 1002 | 1002 | 4780 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29 | 2009-06-13 | SRM 442 | 2 | 234 | 342.04 | 0.55 | 20 | 1963 | 4439 | 31 | 1002 | 4780 |
| 28 | 2009-05-27 | SRM 441 | 2 | 102 | 355.64 | 1.80 | 45 | 1943 | 4568 | 81 | 971 | 5490 |
| 27 | 2009-05-12 | SRM 440 | 2 | 251 | 390.79 | 0.64 | 24 | 1898 | 4961 | 43 | 890 | 7538 |
| 26 | 2009-04-30 | SRM 439 | 2 | 79 | 322.49 | 2.03 | 62 | 1874 | 5196 | 104 | 847 | 8883 |
| 25 | 2009-03-24 | SRM 437 | 2 | 186 | 478.60 | 1.36 | 48 | 1812 | 5847 | 86 | 743 | 10349 |
| 24 | 2009-03-04 | TCO09 Qual 3 | 1 | 792 | 801.08 | -0.23 | -8 | 1764 | 6377 | -27 | 657 | 11179 |
| 23 | 2009-02-28 | TCO09 Qual 2 | 1 | 1215 | 1,141.97 | -0.23 | -10 | 1772 | 6175 | -70 | 684 | 10861 |
| 22 | 2009-02-24 | TCO09 Qual 1 | 1 | 1156 | 1,031.05 | -0.16 | -8 | 1782 | 6006 | -64 | 754 | 9939 |
| 21 | 2008-12-14 | TC China 08 - Finals | 1 | 214 | 345.11 | 0.69 | 35 | 1790 | 6090 | 110 | 818 | 9366 |
| 20 | 2008-12-10 | TC China 08 - 1D | 1 | 87 | 148.42 | 0.77 | 35 | 1755 | 6452 | 97 | 708 | 10786 |
| 19 | 2008-12-04 | TC China 08 - 1C | 1 | 119 | 178.66 | 0.59 | 28 | 1721 | 6858 | 72 | 611 | 11630 |
| 18 | 2008-12-02 | SRM 428 | 2 | 513 | 481.69 | -0.34 | -11 | 1693 | 7201 | -26 | 539 | 12222 |
| 17 | 2008-11-28 | TC China 08 - 1B | 1 | 69 | 124.15 | 0.85 | 41 | 1704 | 7009 | 129 | 565 | 11943 |
| 16 | 2008-11-25 | SRM 427 | 2 | 456 | 422.39 | -0.11 | -1 | 1663 | 7433 | 24 | 436 | 12512 |
| 15 | 2008-11-22 | SRM 426 | 2 | 525 | 523.18 | -0.30 | -12 | 1664 | 7335 | 8 | 412 | 12377 |
| 14 | 2008-10-28 | SRM 423 | 2 | 362 | 356.29 | -0.02 | 4 | 1676 | 7145 | 43 | 404 | 12482 |
| 13 | 2008-10-08 | SRM 421 | 2 | 663 | 522.08 | -0.51 | -22 | 1672 | 7359 | -29 | 361 | 13094 |
| 12 | 2008-10-02 | SRM 420 | 2 | 640 | 437.70 | -0.65 | -30 | 1694 | 7036 | -66 | 390 | 12900 |
| 11 | 2008-09-20 | SRM 418 | 2 | 359 | 450.10 | 0.33 | 30 | 1724 | 6673 | 70 | 456 | 12723 |
| 10 | 2008-09-11 | SRM 417 | 2 | 616 | 494.77 | -0.32 | -14 | 1694 | 7005 | 2 | 386 | 12980 |
| 9 | 2008-07-19 | SRM 410 | 2 | 960 | 507.85 | -0.92 | -46 | 1709 | 6764 | -206 | 384 | 12859 |
| 8 | 2008-07-10 | SRM 409 | 2 | 431 | 523.95 | 0.28 | 30 | 1754 | 6218 | 62 | 590 | 11871 |
| 7 | 2008-06-14 | SRM 405 | 2 | 602 | 508.33 | -0.24 | -10 | 1724 | 6353 | 15 | 528 | 12037 |
| 6 | 2008-06-08 | College Tour West China | 1 | 614 | 288.20 | -1.13 | -66 | 1734 | 6226 | -147 | 513 | 12096 |
| 5 | 2008-06-05 | SRM 404 | 2 | 331 | 411.46 | 0.31 | 42 | 1800 | 5475 | 62 | 660 | 10779 |
| 4 | 2008-05-25 | College Tour Guangdong | 1 | 128 | 345.71 | 1.43 | 119 | 1758 | 5897 | 35 | 598 | 11191 |
| 3 | 2008-05-24 | SRM 402 | 2 | 729 | 409.88 | -0.85 | -87 | 1639 | 6938 | -242 | 563 | 10802 |
| 2 | 2008-05-24 | College Tour Beijing | 1 | 263 | 533.73 | 1.02 | 173 | 1727 | 6024 | -147 | 805 | 8353 |
| 1 | 2008-05-06 | SRM 401 | 2 | 419 | 552.34 | -0.08 | -3 | 1554 | 8082 | -248 | 952 | 6163 |