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Individual Calculations April 2009 |
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| Sobczynski, Roman Total change: 5.40 | |   |
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| XI Kêtrzyñski Festiwal Szachowy B | Ketrzyn | POL | 2008-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1813 | 1852 | 3.50 | 6 | 0.20 | 15 | 3.00 | |
|  Kobus, Sebastian | | | 2017 | POL | 0.00 | 1 | -0.28 | 15 | -4.20 | |  Zawadzki, Krzysztof | | | 1641 | POL | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Sokolowska, Aneta | | | 1675 | POL | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Michalak, Robert | | | 1838 | POL | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Nisztuk, Michal | | | 1847 | POL | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Siwon, Zbigniew | | | 1857 | POL | 0.50 | 1 | 0.01 | 15 | 0.15 | |
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) | | | | Turniej Szachowy "Ferie Zimowe 2009' - grupa A - o Puchar Burmistrza Malborka | Malbork | POL | 2009-02-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1852 | 1.50 | 3 | 0.16 | 15 | 2.40 | |
| | Traczewski, Wojciech | | | 1926 | POL | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Kaluzny, Krzysztof | | | 1574 | POL | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Piesik, Piotr | | | 2197 | POL | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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