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Individual Calculations September 2012 |
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| Jankowiak, Piotr Total change: -10.35 | |   |
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| Obra Lato Open 2012 | Obra | POL | 2012-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1518 | 1559 | 1.50 | 4 | -0.69 | 15 | -10.35 | |
|  Simon, Marek | | | 1809 | POL | 0.00 | 1 | -0.19 | 15 | -2.85 | |  Tomys, Wiktoria | | | 1246 | POL | 0.50 | 1 | -0.36 | 15 | -5.40 | | | Bachta, Adrian | | | 1492 | POL | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Wrobel, Michal | | | 1525 | POL | 0.50 | 1 | -0.05 | 15 | -0.75 | |
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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