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Individual Calculations April 2009 |
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| Sidiropoulos, Nikolaos Total change: 18.75 | |   |
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| 2009 Indiv. Youth Champ. of Attica - Boys U 12 | Nikea - Athens | GRE | 2008-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1659 | 1533 | 1.50 | 3 | 0.51 | 25 | 12.75 | |
|  Papadopoulos, Georgios | | | 1648 | GRE | 0.00 | 1 | -0.34 | 25 | -8.50 | |  Margaritis, Ioannis | | | 1702 | GRE | 1.00 | 1 | 0.72 | 25 | 18.00 | | | Grigoriadis, Mihail | | | 1628 | GRE | 0.50 | 1 | 0.13 | 25 | 3.25 | |
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 team ch prelim. A div. | Attica | GRE | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1643 | 1548 | 1.00 | 2 | 0.24 | 25 | 6.00 | |
| | Tsaknis, Vasilios | | | 1529 | GRE | 0.00 | 1 | -0.53 | 25 | -13.25 | | | Poulopoulos, Ioannis | | | 1757 | GRE | 1.00 | 1 | 0.77 | 25 | 19.25 | |
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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