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Individual Calculations July 2008 |
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| Fotiadis, Ioannis Total change: 20.15 | |   |
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| Attica Champ. Boys U 18 | Aigaleo - Athens | GRE | 2007-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 1699 | 1.50 | 5 | 0.49 | 25 | 12.25 | |
|  Spirou, Panagiotis | | | 2049 | GRE | 0.00 | 1 | -0.11 | 25 | -2.75 | |  Tsiamis, Alexandros | | | 1920 | GRE | 1.00 | 1 | 0.78 | 25 | 19.50 | | | Bozinakis, Pavlos | | | 2049 | GRE | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Pappelis, Dimitrios | | | 1861 | GRE | 0.00 | 1 | -0.29 | 25 | -7.25 | | | Makropoulos, Ioannis | | | 1866 | GRE | 0.00 | 1 | -0.28 | 25 | -7.00 | |
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) | | | | 8th Egaleo Open | Egaleo - Athens | GRE | 2008-03-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1989 | 1676 | 1.00 | 3 | 0.58 | 25 | 14.50 | |
| | Dounis, Alexandros | | | 2026 | GRE | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Karagiannis, Athanasios | m | | 2026 | GRE | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Roumeliotis, Angelos | | | 1915 | GRE | 1.00 | 1 | 0.80 | 25 | 20.00 | |
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 |
| 2001 | 1699 | 0.00 | 3 | -0.44 | 15 | -6.60 | |
| | Sienczewski, Zbigniew | | | 2049 | POL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Karountzos, Nikolaos | | | 2019 | GRE | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Koursaris, Nikolaos | | | 1936 | GRE | 0.00 | 1 | -0.20 | 15 | -3.00 | |
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) | | |
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