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Individual Calculations February 2019 |
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| Dermatas, Marios Total change: 48.40 | |   |
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| 2nd Christmas open S Bikos - D Maragkoudakis Memorial 2018 | Athens | GRE | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1844 | 4.00 | 6 | 1.65 | 20 | 33.00 | |
|  Sifonios, Panagiotis | | | 1444 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Kourouklis, Efthymios-Nektarios | | | 1444 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Rahmanidis, Petros | | | 2070 | GRE | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Grigoriadis, Mihail | | | 2227 | GRE | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Grigoriadis, Alexandros | m | | 2197 | GRE | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Karagiannis, Athanasios | m | | 2210 | GRE | 0.00 | 1 | -0.10 | 20 | -2.00 | | | * 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) | | | | 2019 Attica Team Championships - B Local Group B2 Rounds 1-3 | ESSNA | GRE | 2019-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1736 | 1844 | 2.00 | 2 | 0.77 | 20 | 15.40 | |
| | Kyparissas, Evangelos | | | 1532 | GRE | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Roussos, Leandros | | | 1940 | GRE | 1.00 | 1 | 0.63 | 20 | 12.60 | |
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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