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Individual Calculations April 2009 |
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| Roemersma, Aad Total change: -13.50 | |   |
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| 3D - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 2173 | 1.00 | 2 | -0.21 | 15 | -3.15 | |
|  Smorenberg, Jeroen | | | 2137 | NED | 0.50 | 1 | -0.05 | 15 | -0.75 | |  Manuel, Peter | | | 2059 | NED | 0.50 | 1 | -0.16 | 15 | -2.40 | |
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 |
| 2117 | 2176 | 4.50 | 9 | -0.69 | 15 | -10.35 | |
| | Van Der Velde, Wytse | | | 1970 | NED | 0.50 | 1 | -0.26 | 15 | -3.90 | | | De Graaf, D | | | 2064 | NED | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Osterwald, Elwin | | | 2196 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Utama, Ivan | c | | 2175 | NED | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Holscher, Peter | | | 2104 | NED | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Slisser, Theo | | | 2145 | NED | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Van Geffen, Ben | | | 2144 | NED | 0.00 | 1 | -0.54 | 15 | -8.10 | | | De Groot, Marco | | | 2147 | NED | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Vlaming, Jos P | | | 2112 | NED | 0.50 | 1 | -0.09 | 15 | -1.35 | |
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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