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Individual Calculations April 2008 |
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| Kostas, Panagiotis Total change: -0.75 | |   |
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| Attiki Youth Championships 2008 Boys U16 | Nikaia - Athens | GRE | 2008-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1896 | 2.00 | 4 | -0.16 | 15 | -2.40 | |
|  Rigopoulos-Tsigkos, Alexandros | | | 1943 | GRE | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Kefalas, Spyridon | | | 1955 | GRE | 0.00 | 1 | -0.42 | 15 | -6.30 | |  Habesis, Panayotis | | | 1772 | GRE | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Georgiou, Napoleon | | | 1793 | GRE | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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) | | | | 7th Egaleo Open 2008 | Egaleo - Athens | GRE | 2008-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1826 | 1896 | 3.00 | 5 | 0.11 | 15 | 1.65 | |
| | Aggelis, Nikolaos | | | 2158 | GRE | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Irinidis, Dimitrios | | | 1546 | GRE | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Sienczewski, Zbigniew | | | 2170 | POL | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Litsas, Panagiotis | | | 1592 | GRE | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Petropoulos, Filaretos | | | 1664 | GRE | 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) | | |
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