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Individual Calculations July 2021 |
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| Petrov, Valeriy Total change: 11.60 | |   |
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| Ropotamo Cup 2021 | Primorsko | BUL | 2021-06-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1757 | 1639 | 2.00 | 4 | 0.58 | 20 | 11.60 | |
|  Genov, Petko | | | 2039 * | BUL | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Anev, Asen | | | 1814 | BUL | 0.00 | 1 | -0.27 | 20 | -5.40 | |  Atanasov, Aleksandar | | | 1239 * | BUL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Petrov, Valeri | | | 1934 | BUL | 0.50 | 1 | 0.35 | 20 | 7.00 | | | * 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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