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Individual Calculations August 2021 |
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| Zalega, Maciej Total change: 18.40 | |   |
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| Najdorf Chess Festival 2021 gr. A | Warszawa | POL | 2021-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 1841 | 3.00 | 8 | 0.96 | 40 | 38.40 | |
|  Piekielny, Pawel | | | 2150 | POL | 0.00 | 1 | -0.14 | 40 | -5.60 | |  Pettersson, Alexander | | | 1995 | MLT | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Malaczek, Mateusz | | | 1991 | POL | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Czechowski, Jakub | | | 1961 | POL | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Chrzaszcz, Malvina | | | 2015 | POL | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Derylo, Kamil | | | 2062 | POL | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Jarzebowski, Kacper | | | 2110 | POL | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Delega, Tomasz | c | | 1982 | POL | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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) | | | | Ogolnopolska Olimpiada Mlodziezy 2021 - Chlopcy do lat 14 | Uniejow | POL | 2021-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1751 | 1841 | 5.00 | 9 | -0.50 | 40 | -20.00 | |
| | Sniadecki, Oskar | | | 1487 | POL | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Zieba, Hubert | | | 1441 * | POL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Klimkowski, Jan | f | | 2241 * | POL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Demski, Michal | | | 1768 | POL | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Kutowski, Marcel | | | 1712 | POL | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Maj, Samuel | | | 1670 | POL | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Janeczko, Jakub | | | 1976 | POL | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Grot, Blazej | c | | 1785 | POL | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Kejna, Piotr | c | | 1682 | POL | 1.00 | 1 | 0.29 | 40 | 11.60 | | | * 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) | | |
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