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Individual Calculations October 2021 |
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| Kostov, Troyan Total change: 21.60 | |   |
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| Primorsko Open B 2021 | Primorsko | BUL | 2021-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1495 | 1225 | 2.00 | 7 | 0.54 | 40 | 21.60 | |
|  Stankov, Apostol | | | 1625 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Georgiev, Dimitar | | | 1625 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Vatkovski, Mitko | | | 1505 | BUL | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Petkova, Irina | | | 1625 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tutekov, Teodor | | | 1232 | BUL | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Chuchukova, Stefani | | | 1625 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Andreev, Simeon | | | 1231 | BUL | 0.00 | 1 | -0.49 | 40 | -19.60 | | | * 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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