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Rapid:
Individual Calculations September 2017 |
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| Butkiewicz, Piotr Total change: 11.20 | |   |
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| Polish Rapid Youth Chess Championship 2017 - B10 | Wroclaw | POL | 2017-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1152 | 1135 | 2.00 | 3 | 0.56 | 20 | 11.20 | |
|  Semeniec, Szymon | | | 964 | POL | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Jarocki, Gabriel | | | 1346 | POL | 0.00 | 1 | -0.23 | 20 | -4.60 | |  Zborowski, Jakub | | | 1147 | POL | 1.00 | 1 | 0.52 | 20 | 10.40 | |
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) | | |
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