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Individual Calculations July 2008 |
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| Avramopoulos, Periklis Total change: 5.95 | |   |
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| Wolrd Amateur Championship 2008 | Kallithea - Halkidiki | GRE | 2008-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1798 | 1691 | 1.00 | 3 | -0.11 | 25 | -2.75 | |
|  Atababayev, Khalid | | | 1985 | AZE | 0.00 | 1 | -0.15 | 25 | -3.75 | | | Demiris, Georgios | | | 1645 | GRE | 1.00 | 1 | 0.44 | 25 | 11.00 | | | Koutroukis, Andreas | | | 1764 | GRE | 0.00 | 1 | -0.40 | 25 | -10.00 | |
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) | | | NOTE: K factor changed | | 9th Aegaleo Open 2008 | Aegaleo - Athens | GRE | 2008-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2006 | 1691 | 1.00 | 3 | 0.58 | 15 | 8.70 | |
| | Koursaris, Nikolaos | | | 1936 | GRE | 1.00 | 1 | 0.80 | 15 | 12.00 | |  Dounis, Alexandros | | | 2041 | GRE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Sienczewski, Zbigniew | | | 2041 | POL | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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