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Individual Calculations August 2021 |
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| Zybrant, Sandra Total change: 124.80 | |   |
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| Najdorf Chess Festival 2021 gr. B | Warszawa | POL | 2021-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1501 | 1189 | 2.00 | 5 | 1.29 | 40 | 51.60 | |
|  Kopaniewski, Jakub | | | 1589 * | POL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Staszewski, Krzysztof | | | 1455 | POL | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Kowalski, Witold | | | 1477 | POL | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Kwiek, Janusz | | | 1502 | POL | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Lachcik, Marek | | | 1481 | POL | 0.50 | 1 | 0.35 | 40 | 14.00 | | | * 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) | | | | Warsaw Chess Open - C | Warszawa | POL | 2021-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1447 | 1189 | 3.00 | 6 | 1.83 | 40 | 73.20 | |
| | Wyczesany, Dariusz | | | 1475 | POL | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Nisztuk, Michal | | | 1541 | POL | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Zalucka, Emilia | | | 1525 | POL | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Marczuk, Wojciech | | | 1309 | POL | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Kloda, Tymon | | | 1344 | POL | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Kopaczewski, Zbigniew | | | 1487 | POL | 0.00 | 1 | -0.15 | 40 | -6.00 | |
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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