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Individual Calculations January 2009 |
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| Kosturski, Ivan Total change: 28.85 | |   |
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| IVIS open championship | Sofia | BUL | 2008-10-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2034 | 1727 | 2.00 | 6 | 1.13 | 25 | 28.25 | |
|  Vasilev, Rosen | | | 2007 | BUL | 1.00 | 1 | 0.84 | 25 | 21.00 | |  Todorov, Momchil | | | 2077 | BUL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Vlashki, Nino | | | 2077 | BUL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Slavov, Stanislav | | | 2040 | BUL | 1.00 | 1 | 0.86 | 25 | 21.50 | | | Stoynov, Jordan | f | | 2077 | BUL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Ivanov, Borislav | | | 1926 | BUL | 0.00 | 1 | -0.24 | 25 | -6.00 | |
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) | | | NOTE: K factor changed | | 16-th Memorial Nikola Baharov | Sofia | BUL | 2008-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1958 | 1727 | 0.50 | 2 | 0.04 | 15 | 0.60 | |
| | Drenchev, Petar | m | | 2077 | BUL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Ivanov, Oleg | | | 1839 | BUL | 0.50 | 1 | 0.15 | 15 | 2.25 | |
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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