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Individual Calculations July 2023 |
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| Zavrakidis, Charalampos Total change: 28.80 | |   |
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| Spring open Chess Square 2023 | Athens | GRE | 2023-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1255 | 1037 | 1.50 | 5 | 0.24 | 40 | 9.60 | |
|  Zavrakidis, Nikolaos | | | 1544 | GRE | 0.00 | 1 | -0.04 | 40 | -1.60 | |  Paizanos, Epameinondas | | | 1216 | GRE | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Rentzos, Alexandros | | | 1184 | GRE | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Gouleas, Ioannis | | | 1176 | GRE | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Osmani, Sokol | | | 1153 | GRE | 1.00 | 1 | 0.66 | 40 | 26.40 | |
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) | | | | Athens chalenge 2023 | Athens | GRE | 2023-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1424 | 1037 | 1.00 | 3 | 0.48 | 40 | 19.20 | |
| | Samartzis, Mihail | | | 1825 | GRE | 0.50 | 1 | 0.50 | 40 | 20.00 | | | Michail, Konstantinos | | | 1297 | GRE | 0.50 | 1 | 0.32 | 40 | 12.80 | | | Polikretis, Mattheos | | | 1151 | GRE | 0.00 | 1 | -0.34 | 40 | -13.60 | |
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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