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Individual Calculations April 2009 |
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| Holscher, Peter Total change: -38.10 | |   |
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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 |
| 2171 | 2104 | 0.50 | 2 | -0.32 | 15 | -4.80 | |
|  Van Den Berg, Hilke | | | 2212 | NED | 0.00 | 1 | -0.35 | 15 | -5.25 | | | De Zwart, Cor | | | 2129 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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) | | | | 2D - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2125 | 2104 | 2.00 | 9 | -2.22 | 15 | -33.30 | |
|  Slisser, Theo | | | 2145 | NED | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Van Geffen, Ben | | | 2144 | NED | 0.00 | 1 | -0.44 | 15 | -6.60 | | | De Groot, Marco | | | 2147 | NED | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Vlaming, Jos P | | | 2112 | NED | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Roemersma, Aad | | | 2176 | NED | 0.50 | 1 | 0.10 | 15 | 1.50 | | | De Graaf, D | | | 2064 | NED | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Osterwald, Elwin | | | 2196 | NED | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Utama, Ivan | c | | 2175 | NED | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Van Der Velde, Wytse | | | 1970 | NED | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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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