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Individual Calculations April 2015 |
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| Kolev, Lachezar Total change: 14.40 | |   |
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| Bulgarian championship boys U10 2015 | Pleven | BUL | 2015-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1479 | 1510 | 3.00 | 4 | 0.83 | 40 | 33.20 | |
|  Demirov, Todor | | | 1387 | BUL | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Koev, Koycho | | | 1472 | BUL | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Petkov, Momchil | | | 1580 | BUL | 0.00 | 1 | -0.40 | 40 | -16.00 | |  Kolev, Georgi | | | 1475 | BUL | 1.00 | 1 | 0.45 | 40 | 18.00 | |
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) | | | | Canakkale Icdas Sports Club 100 Years Cup | Canakkale | TUR | 2015-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1366 | 1510 | 3.50 | 6 | -0.47 | 40 | -18.80 | |
| | Koncagul, Suleyman Sah Doruk | | | 1110 * | TUR | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Ergin, Faruk Esat | | | 1546 | TUR | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Aytekin, Furkan Emre | | | 1351 | TUR | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Kirilov, Ivaylo | | | 1619 | BUL | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Genov, Valentin | | | 1393 | BUL | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Cimin, Gokdeniz | | | 1174 | TUR | 1.00 | 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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