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Individual Calculations July 2023 |
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| Zahariev, Velislav Total change: -28.40 | |   |
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| Bulgarian national championship U8 | Primorsko | BUL | 2023-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1219 | 1391 | 0.00 | 1 | -0.73 | 40 | -29.20 | |
|  Taskov, Atanas | | | 1219 | BUL | 0.00 | 1 | -0.73 | 40 | -29.20 | |
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) | | | | XXII Chess Weekend Tournament | Sofia | BUL | 2023-06-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1510 | 1391 | 1.50 | 3 | 0.02 | 40 | 0.80 | |
| | Kostov, Deyan Samuil | f | | 2165 | BUL | 0.00 | 1 | 0.00 | 40 | 0.00 | |  Todorova, Daniela | | | 1039 | BUL | 0.50 | 1 | -0.39 | 40 | -15.60 | | | Skachkov, Yulian | | | 1327 | BUL | 1.00 | 1 | 0.41 | 40 | 16.40 | |
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) | | |
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