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Individual Calculations September 2009 |
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| Van, Der Lende Illias Total change: 22.35 | |   |
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| Intomart GfK Open 2009 | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2261 | 2043 | 2.50 | 8 | 0.60 | 15 | 9.00 | |
|  Van Ketel, Raoul | f | | 2278 | NED | 1.00 | 1 | 0.79 | 15 | 11.85 | |  Zatonskih, Anna | m | wg | 2393 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Nagtegaal, Kees | | | 2240 | NED | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Pruijssers, Roeland | m | | 2393 | NED | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Oosterom, Erik | | | 2126 | NED | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Van Eijk, Sander | f | | 2319 | NED | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Meurs, Tom | | | 2178 | NED | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Van Engen, Herman | | | 2163 | 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) | | | | 17th Annual Southern Open | Kissimmee, Florida | USA | 2009-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2269 | 2021 | 1.50 | 3 | 0.89 | 15 | 13.35 | |
| | Boas, Toby | | | 2183 | USA | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Lugo, Blas | m | | 2380 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Cruz, Dario | | | 2245 | CUB | 0.50 | 1 | 0.28 | 15 | 4.20 | |
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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