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Individual Calculations January 2011 |
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| Petrov, Martin Total change: -13.05 | |   |
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| World Youth Chess Championships 2010 - Open under 10 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1770 | 1858 | 5.00 | 9 | -0.55 | 15 | -8.25 | |
|  Makukins, Maksims | | | 1644 | LAT | 1.00 | 1 | 0.23 | 15 | 3.45 | |  Amier, Hamzah B Mohd Zuhri | c | | 1743 | MAS | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Lopez Mulet, Inigo | | | 1779 | ESP | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Drozdowski, Konrad | | | 1769 | POL | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Ghanbarzadeh, Reza | | | 1804 | IRI | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Puranik, Abhimanyu | | | 1790 | IND | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Lagunow, Raphael | | | 1623 | GER | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Sevian, Samuel | | | 2105 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Dijkhuis, Sven | | | 1671 | NED | 0.50 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | Team Ch boys U12 | Borovets | BUL | 2010-11-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1705 | 1939 | 1.00 | 1 | 0.21 | 15 | 3.15 | |
| | Raykov, Stefan | | | 1705 | BUL | 1.00 | 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) | | | | Bansko Grand Chess Open 2010 | Bansko | BUL | 2010-12-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2158 | 1939 | 1.00 | 6 | -0.53 | 15 | -7.95 | |
| | Spasov, Vasil | g | | 2339 * | BUL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Nikolova, Adriana | | wm | 2328 | BUL | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Pavlidis, Pavlos | | | 1539 * | GRE | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Dounis, Alexandros | | | 2207 | GRE | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Yakimenko, Alexander A | | | 2194 | RUS | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Collas, Didier | m | | 2339 * | FRA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | * 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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