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Individual Calculations November 2011 |
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| Perrett, David C Total change: 8.10 | |   |
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| II Balkan amateur chess festival | Belogradchik | BUL | 2011-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 1952 | 3.50 | 7 | 0.54 | 15 | 8.10 | |
|  Kuznetsov, Kirill | | | 2207 | RUS | 0.50 | 1 | 0.31 | 15 | 4.65 | |  Janachkov, Angel | | | 2210 | BUL | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Ivanov, Bogidar | | | 2179 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Nikolov, Rumen | | | 1819 | BUL | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Miteva, Silvena | | | 1679 | BUL | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Belev, Ivaylo | | | 1883 | BUL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Bochev, Krasimir | | | 2130 | BUL | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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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