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Individual Calculations February 2013 |
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| Kostouros, Alexandros Total change: -7.95 | |   |
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| 1st Christmas Open 2012 - Skakistiki Epikoinonia - A' Group | Athens | GRE | 2012-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 2144 | 3.50 | 6 | -0.38 | 15 | -5.70 | |
|  Spyropoulos, Nikolaos | | | 1744 * | GRE | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Pramateftakis, Nikolaos | | | 1822 | GRE | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Sverkounos, Spyridon | | | 1997 | GRE | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Sarandos, Vasilios | | | 2220 | GRE | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Nikolaou, Georgios | | | 2257 | GRE | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Korres, Evangelos | | | 2040 | GRE | 0.00 | 1 | -0.64 | 15 | -9.60 | | | * 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) | | | | 2nd Christmas tournament of Nikaia - A' Group | Athens - Nikaia | GRE | 2013-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2016 | 2146 | 4.50 | 7 | -0.15 | 15 | -2.25 | |
| | Geropapas, Periklis | | | 1843 | GRE | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Kalergis, Nikolaos | | | 1933 | GRE | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Ornithopoulos, Nikolaos | | | 1976 | GRE | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Sideris, Theodoros | | | 1991 | GRE | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Michelakos, Panagiotis | | | 2187 | GRE | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Sienczewski, Zbigniew | | | 2055 | POL | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Delithanasis, Dimitrios | | | 2127 | GRE | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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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