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Individual Calculations April 2015 |
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| Grabcheva, Natalia Total change: 37.60 | |   |
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| 137th MGU open | Sofia | BUL | 2015-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1773 | 1545 | 1.00 | 3 | 0.36 | 40 | 14.40 | |
|  Kolev, Velio | | | 1825 | BUL | 0.50 | 1 | 0.34 | 40 | 13.60 | |  Kamenov, Valentin | | | 1793 | BUL | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Kosturkov, Krasimir | | | 1700 | BUL | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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) | | | | 138th MGU open | Sofia | BUL | 2015-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 1616 | 1.00 | 3 | 0.58 | 40 | 23.20 | |
| | Nikolov, Orlin | | | 1847 | BUL | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Peycheva, Gergana | | wc | 1936 | BUL | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Gelemerov, Yane | | | 2016 * | 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) | | |
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