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Individual Calculations July 2009 |
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| Todorov, Petar G. Total change: 13.20 | |   |
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| Bulgarian Individual Championship for juniors 14 years old | Sunny Beach | BUL | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1782 | 1739 | 1.00 | 2 | 0.12 | 15 | 1.80 | |
|  Atanasov, Viktor | | | 1827 | BUL | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Georgiev, Emil | | | 1736 | BUL | 0.50 | 1 | 0.00 | 15 | 0.00 | |
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 |
| 1878 | 1727 | 2.00 | 4 | 0.76 | 15 | 11.40 | |
| | Atanasov, Viktor | | | 1827 | BUL | 0.50 | 1 | 0.14 | 15 | 2.10 | |  Ivanov, Iliyan | | | 1839 | BUL | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Valev, Valentin | | | 1799 | BUL | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Ninchev, Daniel | | | 2048 | BUL | 1.00 | 1 | 0.87 | 15 | 13.05 | |
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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