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Individual Calculations July 2009 |
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| Piotrowski, Arkadiusz Total change: 22.80 | |   |
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| 56th YMCA Winter 2009-C | Warszawa | POL | 2009-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1834 | 1914 | 9.00 | 13 | 1.08 | 15 | 16.20 | |
|  Woloszyn, Piotr | | | 1831 | POL | 1.00 | 1 | 0.39 | 15 | 5.85 | |  Nowicki, Bartosz | | | 1827 | POL | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Prazmowski, Wlodzimierz | | | 1748 | POL | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Prazmowski, Bartosz | | | 1802 | POL | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Kwiatkowski, Andrzej | | | 1937 | POL | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Wrabel, Antoni | | | 1876 | POL | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Wilczynski, Adam | | | 1867 | POL | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Sujkowski, Pawel | | | 1805 | POL | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Nairi, Laurent | | | 1869 | FRA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Zbrzeski, Piotr | | | 1865 | POL | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Kwiek, Janusz | | | 1803 | POL | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Prus, Marek | | | 1812 | POL | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Potocki, Karol | | | 1795 | POL | 0.50 | 1 | -0.16 | 15 | -2.40 | |
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) | | | | Open Mazovia Team Championship | Mazowieckie | POL | 2009-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1868 | 1914 | 1.00 | 1 | 0.44 | 15 | 6.60 | |
| | Jaskowski, Piotr | | | 1868 | POL | 1.00 | 1 | 0.44 | 15 | 6.60 | |
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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