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Rapid:
Individual Calculations August 2021 |
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| Marzakov, Rumen Total change: 2.00 | |   |
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| Bulgarian Individual Chess Champoinship B10 Rapid | Apriltsi | BUL | 2021-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1107 | 1009 | 2.00 | 5 | 0.17 | 20 | 3.40 | |
|  Velchev, Yoan | | | 1131 | BUL | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Ivanov, Tsvetan | | | 1105 | BUL | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Panayotov, Mihail | | | 1131 | BUL | 0.50 | 1 | 0.17 | 20 | 3.40 | |  Pantev, Kaloyan | | | 1114 | BUL | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Toshkin, Stanislav | | | 1052 | BUL | 0.00 | 1 | -0.44 | 20 | -8.80 | |
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) | | | | VII Memorial Stoyan Ivanov - Rapid | Shumen | BUL | 2021-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1652 | 1009 | 0.00 | 4 | -0.07 | 20 | -1.40 | |
| | Valev, Valentin | | | 1744 | BUL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Doykov, Stoycho | | | 1665 | BUL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Mircheva, Nona | | | 1703 | BUL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Ehimanov, Kezim | | | 1496 | BUL | 0.00 | 1 | -0.04 | 20 | -0.80 | |
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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