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Individual Calculations July 2010 |
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| Koutsidis, Achilleas Total change: -2.55 | |   |
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| Youth Attica Cup U14 (paidon 14) | Attica | GRE | 2010-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1669 | 1496 | 0.50 | 1 | 0.23 | 15 | 3.45 | |
|  Dimitriadis, Nikolaos | | | 1669 | GRE | 0.50 | 1 | 0.23 | 15 | 3.45 | |
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) | | | | 104th Ambelokipi Open | Ambelokipi - Athens | GRE | 2010-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1870 | 1496 | 0.50 | 2 | 0.31 | 15 | 4.65 | |
|  Sienczewski, Zbigniew | | | 1896 * | POL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Marianidis, Dimitrios | | | 1844 | GRE | 0.50 | 1 | 0.39 | 15 | 5.85 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 105th Ambelokipi Open | Ambelokipi - Athens | GRE | 2010-05-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1558 | 1500 | 1.00 | 4 | -0.71 | 15 | -10.65 | |
| | Kourouklis, Efthymios-Nektarios | | | 1524 | GRE | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Karatzanos, Konstantinos | | | 1411 | GRE | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Kiriazis, Dimitrios | | | 1721 | GRE | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Stathakis, Nikolaos | | | 1575 | GRE | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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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