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Individual Calculations May 2010 |
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| Grafakou, Sotiria Total change: -21.00 | |   |
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| Attikis Filias "Nikos Strofalis" 2010 - Group B' | Attica | GRE | 2009-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1648 | 1397 | 0.00 | 2 | -0.40 | 25 | -10.00 | |
|  Arvanitis, Haralambos | | | 1723 | GRE | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Rigas, Evangelos | | | 1573 | GRE | 0.00 | 1 | -0.27 | 25 | -6.75 | |
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) | | | | 103th Ambelokipi Open Poteas Memorial | Ambelokipi - Athens | GRE | 2010-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 1397 | 0.00 | 4 | -0.44 | 25 | -11.00 | |
| | Zambrakos, Efthimios | | | 1797 * | GRE | 0.00 | 1 | -0.08 | 25 | -2.00 | |  Barbagiannis, Leonidas | | | 1777 | GRE | 0.00 | 1 | -0.09 | 25 | -2.25 | | | Zorbas, Nikolaos | | | 1797 * | GRE | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Nteoudis, Konstantinos | | | 1652 | GRE | 0.00 | 1 | -0.19 | 25 | -4.75 | | | * 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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