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Individual Calculations April 2009 |
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| Osterwald, Elwin Total change: -22.20 | |   |
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| 1A - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2197 | 2193 | 1.00 | 2 | 0.01 | 15 | 0.15 | |
|  Schmitz, Henk | | | 2297 | NED | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Kamstra, Jippe | | | 2096 | NED | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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 |
| 2115 | 2196 | 4.00 | 9 | -1.49 | 15 | -22.35 | |
| | De Groot, Marco | | | 2147 | NED | 0.00 | 1 | -0.57 | 15 | -8.55 | | | Vlaming, Jos P | | | 2112 | NED | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Roemersma, Aad | | | 2176 | NED | 0.50 | 1 | -0.03 | 15 | -0.45 | | | De Graaf, D | | | 2064 | NED | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Van Der Velde, Wytse | | | 1970 | NED | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Utama, Ivan | c | | 2175 | NED | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Holscher, Peter | | | 2104 | NED | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Slisser, Theo | | | 2145 | NED | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Van Geffen, Ben | | | 2144 | NED | 0.00 | 1 | -0.57 | 15 | -8.55 | |
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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