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Individual Calculations July 2009 |
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| Bonas, Jean-Marie Total change: 15.30 | |   |
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| N4 - R6 | Various | FRA | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1809 | 1661 | 1.00 | 1 | 0.70 | 15 | 10.50 | |
|  Darre, Alain | | | 1809 | FRA | 1.00 | 1 | 0.70 | 15 | 10.50 | |
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) | | | | 2e Open d'echecs de la Choisille en Touraine - A | Membrole de la Choisille | FRA | 2009-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1792 | 1638 | 1.50 | 4 | 0.32 | 15 | 4.80 | |
| | Rivet, Bertrand | | | 1775 | FRA | 0.00 | 1 | -0.32 | 15 | -4.80 | |  Saurel, Frederic | | | 1762 | FRA | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Darre, Alain | | | 1820 | FRA | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Berthelot, Maeva | | | 1809 | FRA | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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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