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Individual Calculations September 2009 |
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| Van Veen, Oscar Total change: -42.90 | |   |
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| 3e Leiden Chess Tournament | Leiden | NED | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2093 | 2233 | 5.00 | 9 | -1.12 | 15 | -16.80 | |
|  Van Der Eyk, Dick | | | 2004 | NED | 1.00 | 1 | 0.21 | 15 | 3.15 | |  Savchenko, Stanislav | g | | 2526 | UKR | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Burggraaf, Jan-Theodoor | | | 2018 | NED | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Oosthout, Wouter | | | 1971 | NED | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Hortensius, Nick | | | 2055 | NED | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Schroer, Marcel | | | 2128 | NED | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Van Overdam, Julian | | | 2042 | NED | 0.00 | 1 | -0.75 | 15 | -11.25 | | | De Swart, Sipke | | | 1979 | NED | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Pietrow, Andrzej | | | 2113 | 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) | | | | Dutch Open | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2135 | 2233 | 4.00 | 9 | -1.74 | 15 | -26.10 | |
| | L`ami, Erwin | g | | 2593 | NED | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Timmermans, Mark | | | 2125 | NED | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Bloemhard, Rudy | | | 2109 | NED | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Uthra, P. | | wf | 2063 | IND | 0.50 | 1 | -0.22 | 15 | -3.30 | | | De Groote, Jesper | | | 2048 | NED | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Beijerinck, Nick | | | 2022 | NED | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Goudriaan, Etienne | | | 2107 | NED | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Roggeveen, Wouter | | | 2025 | NED | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Kabos, Tobias | | | 2122 | NED | 0.50 | 1 | -0.15 | 15 | -2.25 | |
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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