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Individual Calculations January 2011 |
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| Osborne, Sam Total change: 7.20 | |   |
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| World Youth Chess Championships 2010 - Open under 18 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2038 | 3.50 | 10 | 0.48 | 15 | 7.20 | |
|  Mammadov, Ayaz Arzu Oglu | f | | 2358 | AZE | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Grandadam, Nicolas | | | 2245 | SUI | 0.50 | 1 | 0.27 | 15 | 4.05 | |  Tran, Ngoc Lan | | | 2227 | VIE | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Haskel, Jeffrey | | | 2231 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Alnami, Salaheddin | | | 1692 | LBA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Spalir, Jernej | | | 2151 | SLO | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Rios, Cristhian Camilo | f | | 2380 | COL | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Mocanu, Sergiu | | | 2205 | MDA | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Ketzetzis, Georgios | | | 2178 | GRE | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Larmuseau, Maarten | | | 2271 | BEL | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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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