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Individual Calculations October 2021 |
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| Kostov, Galin Total change: 50.80 | |   |
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| Primorsko Open A 2021 | Primorsko | BUL | 2021-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2110 | 2038 | 3.50 | 6 | 1.01 | 20 | 20.20 | |
|  Spasov, Vasil | g | | 2438 * | BUL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Toshkov, Angel | | | 1855 | BUL | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Andreev, Simeon | | | 1638 * | BUL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ilchov, Rosen | | | 2215 | BUL | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Shoshin, Kirill | | | 2149 | RUS | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Maerevoet, Sim | f | | 2366 | BEL | 0.00 | 1 | -0.13 | 20 | -2.60 | | | * 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) | | | | Primorsko Open B 2021 | Primorsko | BUL | 2021-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 2038 | 5.50 | 7 | 1.53 | 20 | 30.60 | |
| | Kosturkov, Hristo | | | 1638 * | BUL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Hristova, Ivelina | | | 1638 * | BUL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Marholev, Dimitar | m | | 2170 | BUL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Kolev, Hristian | | | 1841 | BUL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Nenkov, Ljudmil | | | 2199 | BUL | 1.00 | 1 | 0.71 | 20 | 14.20 | | | Krastev, Goran | | | 2138 | BUL | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Petkov, Emil | | | 2101 | BUL | 1.00 | 1 | 0.59 | 20 | 11.80 | | | * 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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