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Individual Calculations April 2009 |
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| De Zwart, Cor Total change: -6.25 | |   |
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| 2Z - Corus Chess Tournament - Dagvierkampen | Wijk aan Zee | NED | 2009-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2129 | 1.00 | 3 | -0.25 | 25 | -6.25 | |
|  Witt, Rob | f | | 2257 | NED | 0.50 | 1 | 0.17 | 25 | 4.25 | |  Holscher, Peter | | | 2104 | NED | 0.50 | 1 | -0.03 | 25 | -0.75 | | | Van Den Berg, Hilke | | | 2212 | NED | 0.00 | 1 | -0.39 | 25 | -9.75 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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