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Individual Calculations July 2021 |
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| Kopacki, Aleksander Total change: -27.60 | |   |
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| Mistrzostwa Polski Juniorow 2021 do lat 8 | Poronin | POL | 2021-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1080 | 1148 | 2.00 | 5 | -0.97 | 40 | -38.80 | |
|  Szczepanik, Marcin | | | 1068 | POL | 0.50 | 1 | -0.11 | 40 | -4.40 | |  Brzezina, Pawel | | | 1106 | POL | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Wolak, Jan | | | 1158 | POL | 0.00 | 1 | -0.49 | 40 | -19.60 | | | Janeczek, Maksymilian | | | 1016 | POL | 0.00 | 1 | -0.68 | 40 | -27.20 | | | Perkowski, Jakub | | | 1054 | POL | 0.50 | 1 | -0.13 | 40 | -5.20 | |
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) | | | | Indywidualne Mistrzostwa Wojewodztwa W-M Juniorow w Szachach Klasycznych 2021-C9 | Ostroda | POL | 2021-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1251 | 1148 | 1.00 | 2 | 0.28 | 40 | 11.20 | |
| | Zawal, Krzysztof | | | 1290 | POL | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Klonowski, Kacper | | | 1212 | POL | 0.50 | 1 | 0.09 | 40 | 3.60 | |
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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