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Individual Calculations July 2009 |
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| Piron, Didier Total change: -4.05 | |   |
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| Belgian National Team Championship 2008-2009 | Various | BEL | 2008-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2012 | 1969 | 1.50 | 4 | -0.27 | 15 | -4.05 | |
|  Bomans, Arno | | | 2036 | BEL | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Marlier, Gaetan | | | 1918 | BEL | 0.50 | 1 | -0.07 | 15 | -1.05 | |  Lanoye, Regis | | | 2045 | BEL | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Maraite, Gregory | | | 2048 | BEL | 0.50 | 1 | 0.11 | 15 | 1.65 | |
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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