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Rapid:
Individual Calculations July 2021 |
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| Petkova, Irina Total change: -8.80 | |   |
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| There are such kids Youth Chess Tournament | Plovdiv | BUL | 2021-06-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1261 | 1232 | 3.00 | 5 | 0.52 | 20 | 10.40 | |
|  Angelov, Stilian | | | 1377 | BUL | 0.00 | 1 | -0.31 | 20 | -6.20 | |  Enev, Aleks | | | 1043 | BUL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Ramadanov, Esat | | | 1693 | BUL | 0.00 | 1 | -0.05 | 20 | -1.00 | | | Mateeva, Yana | | | 1094 | BUL | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Pantev, Kaloyan | | | 1096 | BUL | 1.00 | 1 | 0.32 | 20 | 6.40 | |
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 Team Chess Championship Women Rapid 2021 | Kiten | BUL | 2021-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1460 | 1232 | 0.50 | 5 | -0.96 | 20 | -19.20 | |
| | Ruseva, Eva | | | 1383 | BUL | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Kosteva, Stefani | | | 1370 | BUL | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Taseva, Nia | | | 1348 | BUL | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Genova, Ruzhka | | wm | 1967 | BUL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Hristova, Ivelina | | | 1234 | BUL | 0.00 | 1 | -0.50 | 20 | -10.00 | |
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) | | |
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