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Individual Calculations October 2021 |
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| Petkov, Emil Total change: -16.80 | |   |
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| Primorsko Open B 2021 | Primorsko | BUL | 2021-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1879 | 2101 | 4.50 | 7 | -0.84 | 20 | -16.80 | |
|  Dimitrov, Ivan | | | 1701 * | BUL | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Can, Isil | | wc | 1945 | TUR | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Stoimenov, Plamen | | | 1781 | BUL | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Zhelev, Mavri | | | 1793 | BUL | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Valev, Valentin | | | 2020 | BUL | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Zlatanova, Emilia | | wm | 1878 | BUL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Kostov, Galin | | | 2038 | BUL | 0.00 | 1 | -0.59 | 20 | -11.80 | | | * 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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