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Individual Calculations October 2020 |
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| Petkova, Irina Total change: 86.16 | |   |
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| 34th Open Teteven | Teteven | BUL | 2020-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1595 | 1362 | 3.00 | 9 | 0.92 | 24 | 22.08 | |
|  Stoychev, Ognian | | | 1762 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | |  Doychev, Ivan | | | 1635 | BUL | 0.00 | 1 | -0.17 | 24 | -4.08 | | | Angelov, Kristian | | | 1505 | BUL | 0.00 | 1 | -0.31 | 24 | -7.44 | | | Hristov, Aleksandar | | | 1489 | BUL | 0.50 | 1 | 0.17 | 24 | 4.08 | | | Rangelov, Kristiyan | | | 1288 | BUL | 1.00 | 1 | 0.40 | 24 | 9.60 | | | Kolev, Velio | | | 1626 | BUL | 1.00 | 1 | 0.82 | 24 | 19.68 | | | Kulev, Atanas | | | 1696 | BUL | 0.00 | 1 | -0.12 | 24 | -2.88 | | | Nikolov, Zdravko | | | 1593 | BUL | 0.50 | 1 | 0.29 | 24 | 6.96 | | | Vasilev, Lyuboslav | | | 1762 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | * 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 2019 A tournament | Primorsko | BUL | 2020-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1788 | 1498 | 2.50 | 8 | 0.96 | 24 | 23.04 | |
| | Kostov, Deyan Samuil | c | | 1898 * | BUL | 0.50 | 1 | 0.42 | 24 | 10.08 | | | Genov, Petko | | | 1898 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | Valev, Valentin | | | 1898 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | Skachkov, Yulian | | | 1151 | BUL | 1.00 | 1 | 0.11 | 24 | 2.64 | | | Kostov, Kiril | | | 1878 | BUL | 0.00 | 1 | -0.09 | 24 | -2.16 | | | Kamenov, Valentin | | | 1787 | BUL | 1.00 | 1 | 0.84 | 24 | 20.16 | | | Nikolov, Yavor | | | 1898 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | Nahornyi, Ihor | | | 1898 * | UKR | 0.00 | 1 | -0.08 | 24 | -1.92 | | | * 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 2019 B tournament | Primorsko | BUL | 2020-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1680 | 1498 | 2.50 | 7 | 0.50 | 24 | 12.00 | |
| | Velev, Josif | | | 1898 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | Timev, Anzhelo | | | 1798 | BUL | 0.50 | 1 | 0.35 | 24 | 8.40 | | | Martinov, Nasko | | | 1769 | BUL | 0.00 | 1 | -0.17 | 24 | -4.08 | | | Yazici, Zumral | | | 1196 | TUR | 1.00 | 1 | 0.15 | 24 | 3.60 | | | Yordanov, Rosen | | | 1810 | BUL | 0.50 | 1 | 0.36 | 24 | 8.64 | | | Maria, Lia-Alexandra | | wc | 1654 | ROU | 0.00 | 1 | -0.29 | 24 | -6.96 | | | Genchev, Damjan | | | 1633 | BUL | 0.50 | 1 | 0.18 | 24 | 4.32 | | | * 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) | | | | 15th Chess Weekend Tournament | Sofia | BUL | 2020-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1623 | 1498 | 3.00 | 5 | 1.21 | 24 | 29.04 | |
| | Metev, Martin | | | 1842 | BUL | 0.50 | 1 | 0.38 | 24 | 9.12 | | | Gelemerov, Yane | | | 1898 * | BUL | 0.00 | 1 | -0.08 | 24 | -1.92 | | | Trendafilov, Simeon | | | 1133 | BUL | 1.00 | 1 | 0.10 | 24 | 2.40 | | | Tulliez, Andre | | | 1747 | FRA | 0.50 | 1 | 0.31 | 24 | 7.44 | | | Hristov, Ivan | | | 1495 | BUL | 1.00 | 1 | 0.50 | 24 | 12.00 | | | * 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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