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Individual Calculations January 2009 |
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| Orev, Petar Total change: 24.60 | |   |
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| IVIS open championship | Sofia | BUL | 2008-10-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2169 | 2206 | 5.00 | 5 | 2.27 | 15 | 34.05 | |
|  Stoynov, Jordan | f | | 2275 | BUL | 1.00 | 1 | 0.60 | 15 | 9.00 | |  Andreev, Dobrotich | | | 2119 | BUL | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Todorov, Momchil | | | 2246 | BUL | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Vlashki, Nino | | | 2199 | BUL | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Vasilev, Rosen | | | 2007 | BUL | 1.00 | 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) | | | | 16-th Memorial Nikola Baharov | Sofia | BUL | 2008-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2016 | 2206 | 3.00 | 5 | -0.63 | 15 | -9.45 | |
| | Ivanov, Oleg | | | 1856 | BUL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Ivanov, Borislav | | | 1926 | BUL | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Ljangov, Petar | | | 2077 | BUL | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Stamenov, Valeri | | | 1959 | BUL | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Velchev, Hristo | f | | 2261 | BUL | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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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