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.
| 2007-09-08 | Division 1 | Division 2 | 2007 TopCoder Collegiate Challenge Sponsor Track - Round 2 | previous | next |
| Rating | perf | err | err2 | tau | rho | ΔR | |ΔR| | ΔR min | ΔR max | max |
|---|---|---|---|---|---|---|---|---|---|---|
| SRM | 0.250 | 0.680 | 0.849 | 0.406 | 0.516 | 2.1 | 104.3 | -171 | 188 | 1791 |
| SRMFix | 0.153 | 0.681 | 0.805 | 0.310 | 0.478 | 25.1 | 102.9 | -104 | 241 | 1865 |
| initial | 0.172 | 0.704 | 0.888 | 0.310 | 0.478 | 20.8 | 84.7 | -112 | 236 | 1698 |
| EloSRM | 0.163 | 0.720 | 0.880 | 0.310 | 0.478 | 43.7 | 82.1 | -57 | 189 | 2154 |
| Odd | 0.160 | 0.723 | 0.887 | 0.310 | 0.478 | 32.3 | 74.9 | -61 | 172 | 2011 |
| Player | score | rank | seed | perf | rounds | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|
| retunsky | 231.88 | 1 | 3.74 | 1.90 | 2 | 189 | 2065 | 2519 | 188 | 1791 | 579 |
| MatFiz | 225.00 | 2 | 4.41 | 1.14 | 2 | 144 | 1957 | 3060 | 120 | 1627 | 864 |
| romkatv | 166.70 | 3 | 1.55 | -0.96 | 4 | -35 | 2154 | 2101 | 49 | 1522 | 1118 |
| eldariel87 | 112.43 | 4 | 7.39 | 0.88 | 2 | 156 | 1714 | 4634 | 112 | 1282 | 2063 |
| chintanshah123 | 0.00 | 5 | 5.53 | -0.12 | 2 | 11 | 1770 | 4214 | -44 | 1391 | 1537 |
| virtu | 0.00 | 5 | 6.86 | 0.19 | 2 | 55 | 1649 | 5090 | 18 | 1236 | 2387 |
| MatthiasSigmund | 0.00 | 5 | 7.34 | 0.29 | 2 | 74 | 1599 | 5443 | 45 | 1166 | 2862 |
| stueckchen0815 | -25.00 | 8 | 5.74 | -0.65 | 2 | -57 | 1657 | 5034 | -171 | 1203 | 2630 |
| RAMASRE | -25.00 | 8 | 6.07 | -0.57 | 2 | -52 | 1618 | 5302 | -155 | 1164 | 2872 |
| retnasamy | -25.00 | 8 | 6.38 | -0.50 | 2 | -49 | 1582 | 5583 | -141 | 1127 | 3096 |