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Individual Calculations April 2009 |
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| De Graaf, Arnoud Total change: -20.50 | |   |
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| Open International de Bethune -B | Bethune | FRA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1851 | 1785 | 0.00 | 2 | -0.82 | 25 | -20.50 | |
|  Sobecki, Damien | | | 1883 | FRA | 0.00 | 1 | -0.37 | 25 | -9.25 | | | Bougel, Claude | | | 1818 | FRA | 0.00 | 1 | -0.45 | 25 | -11.25 | |
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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