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Individual Calculations August 2021 |
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| Zbrzeski, Piotr Total change: -50.40 | |   |
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| Wiosenne FIDE granie w Hetmanie 2021_A | Warszawa | POL | 2021-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1540 | 1829 | 8.00 | 12 | -1.98 | 20 | -39.60 | |
|  Jaroszuk, Marcin | | | 1544 | POL | 0.50 | 1 | -0.34 | 20 | -6.80 | |  Wilczynski, Adam | | | 1527 | POL | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Milczarek, Robert | | | 1597 | POL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Wawrzos, Leszek | | | 1429 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kwiek, Janusz | | | 1488 | POL | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Jarmolowski, Tadeusz | | | 1577 | POL | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Polgrabia, Miroslaw | | | 1631 | POL | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Kurowski, Andrzej | | | 1647 | POL | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Juszkowski, Kamil | | | 1720 | POL | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Berdyga, Mariusz | | | 1429 * | POL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Szyszko, Jan | | | 1467 | POL | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Bartosik, Dawid | | | 1429 * | POL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * 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) | | | | Najdorf Chess Festival 2021 gr. A | Warszawa | POL | 2021-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1823 | 2.50 | 9 | -0.54 | 20 | -10.80 | |
| | Adamski, Jan | m | | 2145 | POL | 0.50 | 1 | 0.37 | 20 | 7.40 | | | Smieszek, Wojciech | | | 2107 | POL | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Pettersson, Alexander | | | 1995 | MLT | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Kaminski, Jan | | | 1978 | POL | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Backiel, Hubert | | | 1955 | POL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Starosciak, Szymon | | | 1953 | POL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Karut, Kacper | | | 1872 | POL | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Szwaj, Justyna | | | 1817 | POL | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Szewczak, Andrzej | | | 1743 | POL | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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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