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Individual Calculations September 2009 |
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| Mellema, Andries Total change: 14.70 | |   |
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| Intomart GfK Open 2009 | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2256 | 2117 | 3.50 | 8 | 0.88 | 15 | 13.20 | |
|  Bitalzadeh, Ali | m | | 2417 | NED | 0.00 | 1 | -0.15 | 15 | -2.25 | |  Meurs, Tom | | | 2178 | NED | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Slingerland, Fred | m | | 2389 | NED | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Motoc, Alina | | wg | 2304 | ROU | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Theulings, Paul-Peter | c | | 2147 | NED | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Henseler, Jorgen | | | 2097 | NED | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Van Ketel, Raoul | f | | 2278 | NED | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Vogel, Jaap | f | | 2234 | NED | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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) | | | | Dutch Open | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2205 | 2110 | 3.50 | 9 | 0.10 | 15 | 1.50 | |
| | Van Eijk, Sander | f | | 2338 | NED | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Van Rosmalen, Joost | | | 2206 | NED | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Harini, S. | | | 1986 | IND | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Kodentsov, Grigori | f | | 2279 | NED | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Van Dooren, Dirk | f | | 2308 | NED | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Van Assendelft, Floris | f | | 2332 | NED | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Duijker, Rick | | | 2240 | NED | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Hachijan, Armen | | | 2132 | NED | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Roggeveen, Wouter | | | 2025 | NED | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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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