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Individual Calculations July 2009 |
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| Costa, Serge Total change: -20.50 | |   |
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| Belgian National Team Championship 2008-2009 | Various | BEL | 2008-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 1977 | 2.50 | 7 | -0.82 | 25 | -20.50 | |
|  Becker, Dieter | | | 2089 | BEL | 0.00 | 1 | -0.35 | 25 | -8.75 | | | Macai, Ioan | | | 1959 | BEL | 0.50 | 1 | -0.03 | 25 | -0.75 | |  Atanasiu, Nicolae | | | 2010 | BEL | 0.00 | 1 | -0.45 | 25 | -11.25 | | | Noseda, Jean-Michel | | | 1945 | BEL | 0.50 | 1 | -0.04 | 25 | -1.00 | | | Pierard, Florian | | | 2042 | BEL | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Vorderbruegge, Franz-Josef | | | 1959 | GER | 1.00 | 1 | 0.47 | 25 | 11.75 | | | Romanelli, Robert | | | 1970 | BEL | 0.50 | 1 | -0.01 | 25 | -0.25 | |
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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