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Rapid:
Individual Calculations April 2013 |
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| Petrova , Boryana Total change: -26.60 | |   |
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| Bulgarian Chess Championship for Girls 20 years old 2013 - rapid | Veliko Tarnovo | BUL | 2013-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1725 | 1682 | 0.00 | 3 | -1.33 | 20 | -26.60 | |
|  Nancheva, Doroteya | | | 1818 | BUL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Vasileva, Veronika | | | 1743 | BUL | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Ivanova, Alexandra | | | 1615 | BUL | 0.00 | 1 | -0.59 | 20 | -11.80 | |
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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