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.
| 2007-09-22 | Division 1 | Division 2 | 2007 TopCoder Collegiate Challenge Sponsor Track - Round 4 | previous | next |
| Rating | perf | err | err2 | tau | rho | ΔR | |ΔR| | ΔR min | ΔR max | max |
|---|---|---|---|---|---|---|---|---|---|---|
| initial | 0.088 | 0.664 | 0.683 | 0.333 | 0.500 | 10.6 | 80.0 | -104 | 79 | 1784 |
| SRMFix | 0.078 | 0.682 | 0.701 | 0.333 | 0.500 | 10.2 | 77.4 | -101 | 72 | 1918 |
| EloSRM | 0.094 | 0.687 | 0.711 | -0.333 | -0.500 | 29.3 | 48.8 | -29 | 60 | 2145 |
| SRM | 0.096 | 0.693 | 0.718 | -0.333 | -0.500 | 1.3 | 100.7 | -149 | 80 | 1831 |
| Player | score | rank | seed | perf | rounds | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MatFiz | 102.07 | 1 | 1.65 | 0.72 | 4 | 60 | 2145 | 2164 | 80 | 1831 | 533 |
| eldariel87 | 25.00 | 2 | 2.73 | 0.45 | 4 | 57 | 1824 | 3907 | 73 | 1384 | 1576 |
| retunsky | -25.00 | 3 | 1.62 | -0.89 | 4 | -29 | 2065 | 2526 | -149 | 1626 | 869 |