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Individual Calculations September 2016 |
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| Petkova, Irina Total change: -46.80 | |   |
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| No drugs - through chess | Plovdiv | BUL | 2016-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1332 | 1153 | 0.00 | 4 | -1.17 | 40 | -46.80 | |
|  Petkov, Hristo | | | 1553 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Valkov, Mitko | | | 1151 | BUL | 0.00 | 1 | -0.50 | 40 | -20.00 | |  Evrov, Aleksandar | | | 1332 | BUL | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Kisyov, Petar | | | 1290 | BUL | 0.00 | 1 | -0.32 | 40 | -12.80 | | | * 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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