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Individual Calculations July 2010 |
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| Tsakalidis, Efstratios Total change: -22.20 | |   |
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| Youth Attica Champ. U16 (paidon - korasidon) | Attica | GRE | 2010-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1926 | 1620 | 0.00 | 1 | -0.14 | 15 | -2.10 | |
|  Kourkoulos-Arditis, Stamatis | | | 1926 | GRE | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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 |
| 1678 | 1620 | 1.00 | 4 | -0.83 | 15 | -12.45 | |
| | Papargyriou, Anastasios | | | 2020 * | GRE | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Kostouros, Alexandros | | | 2020 * | GRE | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Koutsidi, Amalia | | | 1268 | GRE | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Karatzanos, Konstantinos | | | 1404 | GRE | 0.00 | 1 | -0.78 | 15 | -11.70 | | | * 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 |
| 1749 | 1615 | 0.50 | 3 | -0.51 | 15 | -7.65 | |
| | Zambrakos, Efthimios | | | 1880 | GRE | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Arvanitis, Georgios | | | 1793 | GRE | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Stathakis, Nikolaos | | | 1575 | GRE | 0.50 | 1 | -0.06 | 15 | -0.90 | |
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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