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Individual Calculations July 2009 |
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| Valev, Valentin Total change: 57.30 | |   |
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| Bulgarian Individual Championship for juniors 12 years old | Sunny Beach | BUL | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1826 | 1780 | 3.00 | 5 | 0.82 | 15 | 12.30 | |
|  Nikolov, Mihail | | | 1835 | BUL | 0.50 | 1 | 0.08 | 15 | 1.20 | |  Nikolov, Rumen | | | 1816 | BUL | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Dereshki, Dario | | | 1827 | BUL | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Ivanova, Simoneta | | | 1719 | BUL | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Daskalov, Dimitar | | | 1933 | BUL | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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) | | | | 2009 Youth Chess Team Balakaniad Boys under 16 | Florina | GRE | 2009-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1844 | 1799 | 2.50 | 3 | 1.19 | 15 | 17.85 | |
| | Ali Marandi, Cemil Can | f | | 1947 | TUR | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Stathopoulos, Ioannis | | | 1868 | GRE | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Lekic, Lazar | | | 1716 | MNE | 1.00 | 1 | 0.39 | 15 | 5.85 | |
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) | | | | SARA Cup | Burgas | BUL | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 1799 | 3.50 | 4 | 1.81 | 15 | 27.15 | |
| | Ninchev, Daniel | | | 2048 | BUL | 1.00 | 1 | 0.81 | 15 | 12.15 | | | Ivanov, Iliyan | | | 1839 | BUL | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Todorov, Petar G. | | | 1727 | BUL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Atanasov, Viktor | | | 1827 | BUL | 0.50 | 1 | 0.04 | 15 | 0.60 | |
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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