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Individual Calculations May 2015 |
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| Grabcheva, Natalia Total change: -32.40 | |   |
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| 141st MGU open | Sofia | BUL | 2015-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1706 | 1616 | 0.50 | 2 | -0.36 | 40 | -14.40 | |
|  Gelemerov, Yane | | | 2016 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Bureva, Radilena | | | 1396 | BUL | 0.50 | 1 | -0.28 | 40 | -11.20 | | | * 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) | | | | Bulgarian chess championship for juniors U14 - 2015 | Plovdiv | BUL | 2015-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1813 | 1654 | 1.50 | 6 | -0.45 | 40 | -18.00 | |
| | Yordanov, Lachezar | | | 1982 | BUL | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Kochiev, Ivan | | | 1633 | BUL | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Vassilev, Martin | | | 2018 | BUL | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Nikolov, Nikolaev Ivan | | | 1569 | BUL | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Mustedjeb, Anher | | | 1688 | BUL | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Petkov, Matey | | | 1990 | BUL | 0.00 | 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) | | |
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