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Individual Calculations August 2015 |
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| Petkov, Gabriel Total change: -12.40 | |   |
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| 1st International children chess tournament Elit | Sofia | BUL | 2015-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1574 | 1330 | 0.00 | 1 | -0.20 | 40 | -8.00 | |
|  Portokalski, Yordan | | | 1574 | BUL | 0.00 | 1 | -0.20 | 40 | -8.00 | |
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) | | | | 147th MGU open | Sofia | BUL | 2015-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1636 | 1330 | 0.50 | 4 | -0.11 | 40 | -4.40 | |
| | Dochev, Delyan | | | 1730 * | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Mehmed, Elif | | | 1726 | BUL | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Georgiev, Nikolay | | | 1559 | BUL | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Ivanov, Svetlen | | | 1530 | BUL | 0.00 | 1 | -0.24 | 40 | -9.60 | | | * 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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