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Rapid:
Individual Calculations May 2018 |
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| Petkova, Irina Total change: 21.20 | |   |
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| Bulgarian chess championship for girls U12- 2018-rapid | Plovdiv, Bulgaria | BUL | 2018-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1273 | 1091 | 2.50 | 5 | 1.06 | 20 | 21.20 | |
|  Zlateva, Viktoriya | | | 1321 | FID | 0.50 | 1 | 0.29 | 20 | 5.80 | |  Strendeva, Viktoria | | | 1348 | FID | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Karageorgieva, Zhanet | | | 1022 | FID | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Grigorova, Asya | | | 1188 | FID | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Karaivanova, Petya | | | 1484 | FID | 0.00 | 1 | -0.08 | 20 | -1.60 | |
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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