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Individual Calculations August 2021 |
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| Karova, Peya Total change: 8.40 | |   |
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| 43rd Open, National individual cup, Tringov Memorial | Plovdiv | BUL | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1545 | 1455 | 3.50 | 8 | 0.25 | 40 | 10.00 | |
|  Karadzhov, Ivan | | | 1855 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Maria, Lia-Alexandra | | wc | 1809 | ROU | 0.00 | 1 | -0.11 | 40 | -4.40 | |  Ilieva, Ralitsa | | | 1751 | BUL | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Krasteva, Yoana | | | 1204 | BUL | 0.00 | 1 | -0.81 | 40 | -32.40 | | | Valentinov, Aleksandar | | | 1076 | BUL | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Lazarov, Kiril Pavlinov | | | 1277 | BUL | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Popzafirov, Danail | | | 1832 | BUL | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Nikolov, Zdravko | | | 1553 | BUL | 1.00 | 1 | 0.63 | 40 | 25.20 | | | * 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) | | | | Bulgarian Individual Chess Championship Girls 20-2021 | Asenovgrad | BUL | 2021-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1573 | 1455 | 1.50 | 4 | -0.04 | 40 | -1.60 | |
| | Petrova, Maria | | | 1817 | BUL | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Taseva, Nia | | | 1329 | BUL | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Petrova, Maria | | | 1817 | BUL | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Taseva, Nia | | | 1329 | BUL | 0.50 | 1 | -0.17 | 40 | -6.80 | |
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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