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Individual Calculations January 2014 |
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| Giatrakos, Orestis Total change: -3.15 | |   |
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| 2013 ESSNA Youth (Paidon-Korasidon) U16 Team championship | Attica | GRE | 2013-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1319 | 1351 | 2.50 | 5 | -0.26 | 30 | -7.80 | |
|  Makris, Thomas | | | 1097 | GRE | 1.00 | 1 | 0.19 | 30 | 5.70 | |  Alexakis, Georgios | | | 1724 | GRE | 0.50 | 1 | 0.40 | 30 | 12.00 | | | Penesis, Dimitrios | | | 1306 | GRE | 0.00 | 1 | -0.56 | 30 | -16.80 | | | Pramateftaki, Anastasia | | | 1109 | GRE | 0.50 | 1 | -0.30 | 30 | -9.00 | | | Peppas, Stamatis | | | 1361 | GRE | 0.50 | 1 | 0.01 | 30 | 0.30 | |
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) | | | NOTE: K factor changed | | 2013 Attica Youth U16 Team championship | Attica | GRE | 2013-09-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1280 | 1351 | 1.50 | 2 | 0.31 | 15 | 4.65 | |
| | Fanos, Haralambos | | | 1314 | GRE | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Prevezanos, Nikolaos | | | 1246 | GRE | 0.50 | 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) | | |
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