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Individual Calculations July 2009 |
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| Van De Water, Marc Total change: 26.50 | |   |
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| Belgian National Team Championship 2008-2009 | Various | BEL | 2008-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1829 | 1479 | 0.50 | 3 | 0.17 | 25 | 4.25 | |
|  Krasucki, Youri | | | 1829 | BEL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Laurent, Michel | | | 1829 | BEL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Bosschem, Eddy | | | 1829 | BEL | 0.50 | 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) | | | | 33e open international de Fourmies | Fourmies | FRA | 2009-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1867 | 1532 | 1.50 | 5 | 0.89 | 25 | 22.25 | |
| | Debusschere, Helmuth | | | 1882 | BEL | 1.00 | 1 | 0.89 | 25 | 22.25 | |  Jankowski, Johnny | | | 1882 | FRA | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Lechelle, William | | | 1882 | FRA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Van Rekom, Robert | | | 1857 | NED | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Houssin, Vianney | | | 1833 | FRA | 0.00 | 1 | -0.15 | 25 | -3.75 | |
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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