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Individual Calculations May 2010 |
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| Kosny, Marek Total change: -11.85 | |   |
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| Otwarta Liga Mazowiecka 2009/2010 | Mazowieckie | POL | 2009-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1885 | 2005 | 2.50 | 5 | -0.79 | 15 | -11.85 | |
|  Zajewski, Zbigniew | | | 1899 | POL | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Parol, Pawel | | | 1767 | POL | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Dabrowski, Leszek | | | 1896 | POL | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Jozwik, Jacek | | | 2005 | POL | 0.00 | 1 | -0.50 | 15 | -7.50 | |  Nowak, Edward | | | 1858 | POL | 0.00 | 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) | | |
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