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Individual Calculations May 2010 |
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| Costa, Serge Total change: -3.50 | |   |
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| Nationale Interclubs 2009-2010 | Various | BEL | 2009-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2049 | 1956 | 2.50 | 7 | -0.14 | 25 | -3.50 | |
|  Mueller, Norbert | | | 2115 | GER | 0.50 | 1 | 0.21 | 25 | 5.25 | |  Krueger, Andre | | | 2073 | GER | 0.50 | 1 | 0.16 | 25 | 4.00 | | | Thiry, Jean-Christophe | | | 2026 | BEL | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Wettach, Alain | | | 2032 | BEL | 0.50 | 1 | 0.10 | 25 | 2.50 | | | Boidman, Marina | | | 2179 | GER | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Guion, Geoffrey | | | 1881 | BEL | 0.50 | 1 | -0.10 | 25 | -2.50 | | | Sauvage, Eric | | | 2034 | BEL | 0.00 | 1 | -0.39 | 25 | -9.75 | |
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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