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Individual Calculations October 2021 |
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| Petkova, Irina Total change: 66.80 | |   |
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| Primorsko Open A 2021 | Primorsko | BUL | 2021-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 1629 | 2.00 | 8 | -0.39 | 40 | -15.60 | |
|  Badev, Kiril | f | | 2029 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Kayan, Veli | | | 1929 | TUR | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Toshkov, Angel | | | 1855 | BUL | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Dimitrov, Pavel | m | | 2029 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Ciftci, Zeynep | | | 1874 | TUR | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Genchev, Damjan | | | 1607 | BUL | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Ivanov, Igor | | | 1791 | RUS | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Stoyanov, Yordan | | | 1336 | BUL | 1.00 | 1 | 0.15 | 40 | 6.00 | | | * 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) | | | | Primorsko Open B 2021 | Primorsko | BUL | 2021-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1823 | 1629 | 4.00 | 7 | 2.06 | 40 | 82.40 | |
| | Angelov, Kosta | m | | 2029 * | BUL | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Angelov, Zvetomir | | | 2029 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Shumantov, Aleksandar | | | 1817 | GER | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Kostov, Troyan | | | 1229 * | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Kolev, Hristian | | | 1841 | BUL | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Belev, Ivaylo | | | 1787 | BUL | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Dimitrov, Teodor | | | 2029 * | BUL | 1.00 | 1 | 0.92 | 40 | 36.80 | | | * 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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