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Individual Calculations November 2009 |
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| Mackiewicz, Piotr Total change: -18.75 | |   |
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| XIV International Chess Festival - Seahorse of Rewal 2009 -Open B | Rewal | POL | 2009-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1897 | 1795 | 1.00 | 6 | -1.25 | 15 | -18.75 | |
|  Sroka, Janusz | | | 2064 | POL | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Kasperek, Joanna | | | 2034 | POL | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Miechowicz, Witold | | | 1979 | POL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Botor, Michal | | | 2010 | POL | 0.00 | 1 | -0.23 | 15 | -3.45 | |  Mockun, Dawid | | | 1627 | POL | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Cyboran, Katarzyna | | | 1668 | POL | 0.00 | 1 | -0.67 | 15 | -10.05 | |
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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