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Individual Calculations May 2017 |
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| Grabcheva, Natalia Total change: -63.20 | |   |
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| 184th MGU open | Sofia | BUL | 2017-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1556 | 1624 | 2.00 | 3 | 0.34 | 40 | 13.60 | |
|  Punchev, Ivan | | | 1708 | BUL | 0.50 | 1 | 0.12 | 40 | 4.80 | |  Arshinkova, Boryana | | | 1251 | BUL | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Babatov, Martin | | | 1709 | BUL | 0.50 | 1 | 0.12 | 40 | 4.80 | |
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) | | | | Bulgarian chess championship for girls U16 - 2017 | Plovdiv | BUL | 2017-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1418 | 1624 | 1.00 | 4 | -1.92 | 40 | -76.80 | |
| | Atanasova, Yoana | | | 1283 | BUL | 0.00 | 1 | -0.88 | 40 | -35.20 | | | Stanoeva, Vladislava | | | 1224 * | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Petrova, Maria | | | 1623 | BUL | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Yordanova, Kristina | | | 1540 | BUL | 0.00 | 1 | -0.62 | 40 | -24.80 | | | * 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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