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Individual Calculations July 2009 |
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| Sigouros, Ioannis Total change: -5.85 | |   |
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| Attica Teams Cup | Attica | GRE | 2009-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1995 | 2004 | 1.50 | 2 | 0.48 | 15 | 7.20 | |
|  Panagiotopoulos, Vas | | | 2010 | GRE | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Vrouvakis, Mattheos | | | 1980 | GRE | 0.50 | 1 | -0.03 | 15 | -0.45 | |
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) | | | | 96 Ambelokipi Open | Athens | GRE | 2009-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1794 | 2018 | 3.00 | 5 | -0.87 | 15 | -13.05 | |
| | Arvanitakis, Panagiotis | | | 1668 | GRE | 0.50 | 1 | -0.39 | 15 | -5.85 | | | Koutoukidis, Panagiotis | | | 1895 | GRE | 0.50 | 1 | -0.17 | 15 | -2.55 | |  Stamatiadis, Georgios | | | 1804 | GRE | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Mitsakos, Achilleas | | | 1762 | GRE | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Dekanozishvili, Tamaz | | | 1842 | GEO | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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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