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Individual Calculations February 2019 |
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| Nathanail, Spyridon Total change: -34.40 | |   |
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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 |
| 1122 | 1415 | 1.00 | 2 | -0.69 | 20 | -13.80 | |
|  Oikonomopoulos, Filippos | | | 1096 | GRE | 0.00 | 1 | -0.87 | 20 | -17.40 | | | Voutsas, Christos | | | 1148 | GRE | 1.00 | 1 | 0.18 | 20 | 3.60 | |
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) | | | | New Year's 2019 open Chess Square A Mitsakos Memorial | Athens | GRE | 2019-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1415 | 1415 | 2.00 | 6 | -1.03 | 20 | -20.60 | |
| | Cruceru, Lavinel | | | 1815 * | ROU | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Makavelos, Vasilios | | | 1035 | GRE | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Papaioannou, Dimitrios | | | 1595 | GRE | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Sideris, Theodoros | | | 1815 * | GRE | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Spyratou, Kleanthi | | | 1061 | GRE | 0.00 | 1 | -0.89 | 20 | -17.80 | | | Kazantzoglou, Stefanos | | | 1168 | GRE | 1.00 | 1 | 0.19 | 20 | 3.80 | | | * 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) | | |
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