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Individual Calculations May 2010 |
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| Purzycki, Jan Dawid Total change: 7.05 | |   |
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| IV Wielkopolska Liga Szachowa grupa A | Wielkoposka | POL | 2009-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1839 | 2019 | 4.00 | 5 | 0.47 | 15 | 7.05 | |
|  Markiewicz, Tomasz | | | 2003 | POL | 0.50 | 1 | -0.02 | 15 | -0.30 | |  Til, Bartosz | | | 1619 * | POL | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Hemmerling, Jaroslaw | | | 1979 | POL | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Jedrzejczak, Przemyslaw | | | 1900 | POL | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Kuzma, Mateusz | | | 1695 | POL | 1.00 | 1 | 0.13 | 15 | 1.95 | | | * 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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