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Individual Calculations May 2017 |
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| Petkova, Irina Total change: 8.40 | |   |
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| Bulgarian chess championship for girls U12 - 2017 | Plovdiv | BUL | 2017-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1334 | 1069 | 1.00 | 4 | 0.21 | 40 | 8.40 | |
|  Toncheva, Nadya | | | 1469 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Apulcheva, Kristina | | | 1281 | BUL | 0.50 | 1 | 0.27 | 40 | 10.80 | |  Nikolova, Angelika | | | 1173 | BUL | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Strendeva, Viktoria | | | 1412 | BUL | 0.00 | 1 | -0.12 | 40 | -4.80 | | | * 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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