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Individual Calculations April 2009 |
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| De Groot, Marco Total change: -19.50 | |   |
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| 2D - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2121 | 2147 | 3.50 | 9 | -1.30 | 15 | -19.50 | |
|  Osterwald, Elwin | | | 2196 | NED | 1.00 | 1 | 0.57 | 15 | 8.55 | |  Utama, Ivan | c | | 2175 | NED | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Holscher, Peter | | | 2104 | NED | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Slisser, Theo | | | 2145 | NED | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Van Geffen, Ben | | | 2144 | NED | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Van Der Velde, Wytse | | | 1970 | NED | 0.00 | 1 | -0.73 | 15 | -10.95 | | | Vlaming, Jos P | | | 2112 | NED | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Roemersma, Aad | | | 2176 | NED | 0.00 | 1 | -0.46 | 15 | -6.90 | | | De Graaf, D | | | 2064 | NED | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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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