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Individual Calculations August 2019 |
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| Ptak, Ryszard Total change: -42.40 | |   |
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| Najdorf Chess Festival gr. C | Warszawa | POL | 2019-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1266 | 1544 | 4.50 | 8 | -2.12 | 20 | -42.40 | |
|  Jochym, Slawomir | | | 1172 | POL | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Seklecki, Jakub | | | 1312 | POL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Wieckowski, Michal | | | 1383 | POL | 0.00 | 1 | -0.71 | 20 | -14.20 | | | Berdyga, Mariusz | | | 1305 | POL | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Sloniewski, Jakub | | | 1283 | POL | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Iller, Robert | | | 1247 | POL | 0.00 | 1 | -0.85 | 20 | -17.00 | | | Karhula, Adam | | | 1211 | FIN | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Wolszczak, Natalia | | | 1217 | POL | 0.00 | 1 | -0.87 | 20 | -17.40 | |
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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