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Individual Calculations September 2017 |
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| Koitka, Jakub Total change: -4.20 | |   |
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| 25th Poznan Chess Festival | Poznan | POL | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 2144 | 6.50 | 9 | -0.21 | 20 | -4.20 | |
|  Janicki, Rafal | | | 1744 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Zielinski, Olgierd | | | 1869 | POL | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Kus, Aleksander | | | 2012 | POL | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Nowak, Rafal | | | 1996 | POL | 0.00 | 1 | -0.70 | 20 | -14.00 | | | Simon, Marek | | | 1837 | POL | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Niemier, Hubert | | | 1924 | POL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Michalski, Karol | | | 1992 | POL | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Chaczynski, Kamil | | | 1744 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Niekras, Dawid | f | | 2277 | POL | 0.50 | 1 | 0.18 | 20 | 3.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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