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Individual Calculations September 2009 |
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| Costa, Serge Total change: -1.00 | |   |
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| Belgisch Kampioenschap 2009 - Open | Saint-Servais (Namur) | BEL | 2009-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 1957 | 2.50 | 5 | -0.04 | 25 | -1.00 | |
|  Henris, Luc | f | | 2297 | BEL | 0.00 | 1 | -0.12 | 25 | -3.00 | |  Kuciapa, Andre | | | 1797 | BEL | 0.50 | 1 | -0.21 | 25 | -5.25 | | | Weidert, Florian | | | 1790 | BEL | 1.00 | 1 | 0.28 | 25 | 7.00 | | | Frederiksen, Jens | | | 1858 | DEN | 1.00 | 1 | 0.36 | 25 | 9.00 | | | De Reymaeker, Walter | | | 2064 | BEL | 0.00 | 1 | -0.35 | 25 | -8.75 | |
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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