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Individual Calculations July 2009 |
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| Vakalis, Angelos Total change: 5.25 | |   |
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| 1st Open below 1800 national rating SOP_SMAOK | Pagrati - Athens | GRE | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1831 | 1544 | 0.00 | 2 | -0.33 | 15 | -4.95 | |
|  Nakas, Spyridon | | | 1894 | GRE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Maroulakos, Stavros | | | 1768 | GRE | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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) | | | | 2009 Attica mixed Youth Teams Champ. Boys & Girls U16 | Attica | GRE | 2009-03-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1623 | 1544 | 0.00 | 1 | -0.39 | 15 | -5.85 | |
| | Litsas, Panagiotis | | | 1623 | GRE | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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) | | | | Easter Tournament 2009 PS Peristeriou | Peristeri - Athens | GRE | 2009-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1850 | 1592 | 2.00 | 5 | 1.07 | 15 | 16.05 | |
|  Sideris, Theodoros | | | 1942 | GRE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kourkoulos-Arditis, Stamatis | | | 1811 | GRE | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Pavlis, Antonios | | | 1815 | GRE | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Marianidis, Dimitrios | | | 1842 | GRE | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Efthimiou, Georgios | | | 1840 | GRE | 1.00 | 1 | 0.81 | 15 | 12.15 | |
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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