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Individual Calculations June 2023 |
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| Dukaczewski, Piotr Total change: 3.80 | |   |
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| 2023 IBCA European Team Chess Championship for the Blind and Visually Impaired | Genova | ITA | 2023-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 2091 | 4.50 | 8 | -1.04 | 20 | -20.80 | |
|  Kostadinovski, Zoran | | | 1907 | MKD | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Dobierzin, Olaf | | | 1935 | GER | 0.50 | 1 | -0.21 | 20 | -4.20 | |  Janjic, Stefan | | | 2089 | SRB | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Ivanov, Ljubomir | | | 1768 | BUL | 0.00 | 1 | -0.87 | 20 | -17.40 | | | Saez Gabikagogeaskoa, Oscar | | | 1979 | ESP | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Zsiltzova-Lisenko, Lubov | | wm | 2151 | UKR | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Alon, Levi | | | 1691 * | ISR | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Morariu, Ionel | | | 1914 | ROU | 1.00 | 1 | 0.27 | 20 | 5.40 | | | * 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) | | | | Final Mistrzostw Polski Niewidomych i Slabowidzacych w szachach 2023 | Wisla | POL | 2023-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1925 | 2091 | 7.50 | 9 | 1.23 | 20 | 24.60 | |
| | Suder, Ryszard | | | 2011 | POL | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Migala, Andrzej | | | 1922 | POL | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Chojnowski, Marcin | | | 2035 | POL | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Stachanczyk, Jacek | m | | 2147 | POL | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Pawelec, Bartosz | | | 1937 | POL | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Debowska, Teresa | f | | 1714 | POL | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Falkowski, Dawid | | | 1895 | POL | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Wolanski, Michal | | | 1978 | POL | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Spionkowski, Fabian | | | 1682 | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | |
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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