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Individual Calculations April 2009 |
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| Petkova, Veneta Total change: -35.55 | |   |
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| 58th Bulgarian Women Championship Semi-final | Plovdiv | BUL | 2009-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1896 | 1964 | 4.00 | 7 | -0.09 | 15 | -1.35 | |
|  Ivanova, Simoneta | | | 1719 | BUL | 1.00 | 1 | 0.20 | 15 | 3.00 | |  Krumova, Ani | | | 1812 | BUL | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Galunova, Tsveta | | | 1891 | BUL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Sirkova, Darena | | | 1942 | BUL | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Vladimirova, Maria | | | 2064 | BUL | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Dragieva, Denitza | | | 1755 | BUL | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Bednikova, Stefi | | | 2086 | BUL | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 58th Bulgarian individual women chess championship | Dupnitsa | BUL | 2009-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 1964 | 1.50 | 11 | -2.28 | 15 | -34.20 | |
| | Gradevska, Desislava | | | 1721 | BUL | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Sirkova, Darena | | | 1942 | BUL | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Chilingirova, Pavlina | | wm | 2154 | BUL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Vladimirova, Maria | | | 2064 | BUL | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Bednikova, Stefi | | | 2086 | BUL | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Voiska, Margarita | | wg | 2314 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Yordanova, Svetla | | wm | 2202 | BUL | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Krumova, Ani | | | 1812 | BUL | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Videnova, Iva | | wf | 2193 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Genova, Lyubka | | wm | 2231 | BUL | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Nikolova, Adriana | | wm | 2310 | BUL | 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) | | |
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