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Individual Calculations February 2019 |
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| Grigoriadis, Mihail Total change: -49.80 | |   |
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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 |
| 1907 | 2227 | 3.50 | 5 | -0.78 | 20 | -15.60 | |
|  Antoniadis, Artiom | | | 1827 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Diamantopoulos, Leonidas Nik | | | 1871 | GRE | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Dermatas, Marios | | | 1844 | GRE | 0.50 | 1 | -0.41 | 20 | -8.20 | | | Girvalakis, Spyridon | | | 1925 | GRE | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Rahmanidis, Petros | | | 2070 | GRE | 0.00 | 1 | -0.71 | 20 | -14.20 | | | * 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) | | | | New Year's 2019 open Chess Square A Mitsakos Memorial | Athens | GRE | 2019-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 2227 | 5.50 | 9 | -1.52 | 20 | -30.40 | |
| | Kartsidima, Aikaterini | | | 1827 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Sideris, Theodoros | | | 1870 | GRE | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Vazelakis, Dimitrios | | | 1920 | GRE | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Abelakiotis, Stavros | | | 1965 | GRE | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Kotronias, Vasilios | g | | 2493 | GRE | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Delithanasis, Dimitrios | | | 1906 | GRE | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Papaioannou, Dimitrios | | | 1827 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Markantonaki, Haritomeni | | wf | 2122 | GRE | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Spyratos, Nikolaos | | | 1827 * | GRE | 0.00 | 1 | -0.92 | 20 | -18.40 | | | * 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 - C Category Rounds 1-3 | ESSNA | GRE | 2019-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1865 | 2227 | 2.50 | 3 | -0.19 | 20 | -3.80 | |
| | Litras, Iosif | | | 1909 | GRE | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Tsilov, Georgios | | | 1832 | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Santorinaios, Iakovos | | | 1854 | GRE | 1.00 | 1 | 0.10 | 20 | 2.00 | |
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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