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Individual Calculations April 2008 |
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| Sirkova, Darena Total change: 35.10 | |   |
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| 30th Bulgarian open Championship | Plovdiv | BUL | 2008-02-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2119 | 1769 | 0.00 | 3 | -0.33 | 15 | -4.95 | |
|  Kozhuharov, Spas | m | | 2119 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Yordanov, Nikolay | | | 2119 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Mirkovic, Stevan | | | 2119 | SRB | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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 Women Chess Championship - Semifinal | Plovdiv | BUL | 2008-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 1769 | 4.00 | 7 | 2.67 | 15 | 40.05 | |
| | Andreeva, Plamena | | wf | 2113 | BUL | 1.00 | 1 | 0.88 | 15 | 13.20 | |  Videnova, Iva | | wf | 2119 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Stefanova, Milena | | | 2053 | BUL | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Doncheva, Marinela | | | 2056 | BUL | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Trifonova, Sandra | | | 1957 | BUL | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Vladimirova, Maria | | | 1971 | BUL | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Petkova, Veneta | | | 1936 | BUL | 1.00 | 1 | 0.72 | 15 | 10.80 | |
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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