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Individual Calculations May 2015 |
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| Yordanov, Lachezar Total change: 4.40 | |   |
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| Bulgarian chess championship for juniors U14 - 2015 | Plovdiv | BUL | 2015-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1787 | 1982 | 7.00 | 9 | 0.53 | 40 | 21.20 | |
|  Hristov, Deyan | | | 1582 * | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Grabcheva, Natalia | | | 1654 | BUL | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Boev, Viktor | | | 1758 | BUL | 0.00 | 1 | -0.78 | 40 | -31.20 | | | Neikov, Radostin | | | 1585 | BUL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Raykov, Stefan | | | 2022 | BUL | 0.50 | 1 | 0.06 | 40 | 2.40 | | | Petkov, Matey | | | 1990 | BUL | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Tsvetanov, David | | | 1789 | BUL | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Vassilev, Martin | | | 2018 | BUL | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Mustedjeb, Anher | | | 1688 | BUL | 1.00 | 1 | 0.15 | 40 | 6.00 | | | * 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) | | | | V.International Rumi Children's Games Chess Team Tournaments | Konya | TUR | 2015-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2024 | 1982 | 0.50 | 2 | -0.42 | 40 | -16.80 | |
| | Tahbaz, Arash | | | 2270 | IRI | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Ozbay, Ece | | wc | 1778 | TUR | 0.50 | 1 | -0.26 | 40 | -10.40 | |
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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