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Individual Calculations April 2009 |
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| Naidenova, Jordanka Total change: 2.40 | |   |
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| Bulgarian Championship for Girls to 18 years old | Smoljan | BUL | 2008-03-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1889 | 1907 | 2.50 | 4 | 0.42 | 15 | 6.30 | |
|  Stefanova, Milena | | | 2053 | BUL | 1.00 | 1 | 0.70 | 15 | 10.50 | |  Todorova, Gabriela | | | 1699 | BUL | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Vladimirova, Maria | | | 1971 | BUL | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Dilova, Monika | | | 1834 | BUL | 0.50 | 1 | -0.10 | 15 | -1.50 | |
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) | | | | 31st Bulgarian Open Chmpionship - Georgi Tringov Memorial 01.02.2009-07.02.2009 | Plovdiv | BUL | 2009-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2148 | 1896 | 0.50 | 4 | -0.26 | 15 | -3.90 | |
| | Arnaudov, Petar | | | 2194 | BUL | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Pelitov, Dimitar | | | 2189 | BUL | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Baninska, Tanja | | wf | 2115 | BUL | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Gocev, Plamen | | | 2094 | BUL | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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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