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Individual Calculations September 2020 |
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| Chitakova, Galya Total change: 1.20 | |   |
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| Bulgarian individual chess championship U18 - Girls - 2020 | Asenovgrad | BUL | 2020-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1600 | 1709 | 3.50 | 5 | 0.38 | 40 | 15.20 | |
|  Grabcheva, Natalia | | | 1764 | BUL | 1.00 | 1 | 0.58 | 40 | 23.20 | |  Karova, Peya | | | 1419 | BUL | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Yanusheva, Valeriya | | | 1309 * | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Petkova, Lilia | | | 1401 | BUL | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Peycheva, Gergana | f | wm | 2109 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | 219 MGU Open | Sofia | BUL | 2020-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1665 | 1718 | 3.00 | 6 | -0.35 | 40 | -14.00 | |
| | Kolev, Lachezar | | | 2003 | BUL | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Stoykov, Jordan | | | 1430 | BUL | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Metev, Martin | | | 1865 | BUL | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Kamenov, Valentin | | | 1783 | BUL | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Ivanov, Oleg | | | 1489 | BUL | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Karova, Peya | | | 1418 | BUL | 1.00 | 1 | 0.15 | 40 | 6.00 | |
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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