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Individual Calculations July 2009 |
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| Kosturski, Ivan Total change: 0.30 | |   |
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| 2-nd Memorial Hristo Gerenski | Sofia | BUL | 2009-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2058 | 1756 | 0.00 | 3 | -0.45 | 15 | -6.75 | |
|  Orev, Petar | m | | 2106 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Nikolov, Savko | | | 1986 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Mitrev, Kiril | | | 2081 | BUL | 0.00 | 1 | -0.13 | 15 | -1.95 | |
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) | | | | BUL Championship seniors 2009 | Sofia | BUL | 2009-05-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1989 | 1746 | 2.00 | 7 | 0.47 | 15 | 7.05 | |
| | Cholakov, Stefan | | | 2096 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Mitov, Borislav | | | 2096 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Bizov, Stojan | | | 1807 | BUL | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Orev, Bozhidar | | | 1841 | BUL | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Kostov, Nikolay | | | 1894 | BUL | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Stoyanov, Stoyan Slavov | | | 2096 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kamenov, Gerasim | | | 2096 | 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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