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Individual Calculations September 2009 |
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| Kovachev, Radoslav Total change: -26.50 | |   |
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| 3-rd International Open Chess Festival VARNA | St. st. Constantine and Helena | BUL | 2009-06-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1663 | 0.00 | 4 | -0.44 | 25 | -11.00 | |
|  Dimitrov, Pavel | m | | 2013 | BUL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Kazimova, Narmin Nizami Qizi | | | 2013 | AZE | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Petkov, Hristo | | | 2013 | BUL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Melnikova, Yana | | wg | 2013 | RUS | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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) | | | | 24th open TETEVEN | Teteven | BUL | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1972 | 1663 | 0.00 | 4 | -0.62 | 25 | -15.50 | |
|  Janakiev, Ivan | m | | 2063 * | BUL | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Barkashki, Martin Georgiev | | | 2052 | BUL | 0.00 | 1 | -0.09 | 25 | -2.25 | | | Hristov, Emil | | | 1950 | BUL | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Iliev, Alexandar | | | 1824 | BUL | 0.00 | 1 | -0.29 | 25 | -7.25 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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