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Individual Calculations January 2009 |
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| Duda, Jan-Krzysztof Total change: 13.50 | |   |
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| European Youth Chess Championship 2008 - Boys U10 | Herceg Novi | MNE | 2008-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1805 | 1939 | 4.00 | 6 | -0.06 | 15 | -0.90 | |
|  Mamedov, Elmin | | | 1793 | RUS | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Bellahcene, Bilel | | | 1717 | FRA | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Valev, Valentin | | | 1721 | BUL | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Emdin, Mark | | | 1831 | RUS | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Steinberg, Nitzan | | | 1959 | ISR | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Ali Marandi, Cemil Can | c | | 1809 | TUR | 0.50 | 1 | -0.18 | 15 | -2.70 | |
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) | | | | World Youth Chess Championships 2008 - Open 10 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2013 | 2.50 | 3 | 0.96 | 15 | 14.40 | |
| | Pichot, Alan | f | | 1925 | ARG | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Mousavi, Seyed Khalil | | | 2042 | IRI | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Ghosh, Diptayan | | | 2039 | IND | 0.50 | 1 | 0.04 | 15 | 0.60 | |
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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