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Individual Calculations August 2021 |
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| Atanasova, Tsvetina Total change: -14.00 | |   |
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| 43rd Open, National individual cup, Tringov Memorial | Plovdiv | BUL | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1525 | 1148 | 1.00 | 6 | 0.42 | 40 | 16.80 | |
|  Yordanov, Nikolay Plamenov | f | | 1548 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Iliev, Hristiyan | | | 1548 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Ilieva, Ralitsa | | | 1548 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Chitakova, Galya | | | 1548 * | BUL | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Merdzhanov, Vladko | | | 1548 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Strendeva, Viktoria | | | 1409 | BUL | 0.50 | 1 | 0.32 | 40 | 12.80 | | | * 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) | | | | Bulgarian Individual Chess Championship Girls 12-2021 | Asenovgrad | BUL | 2021-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1201 | 1148 | 0.50 | 3 | -0.77 | 40 | -30.80 | |
| | Bizheva, Stefani | | | 1212 | BUL | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Fezova, Iva | | | 1174 | BUL | 0.50 | 1 | 0.04 | 40 | 1.60 | | | Mateeva, Yana | | | 1218 | BUL | 0.00 | 1 | -0.40 | 40 | -16.00 | |
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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