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Individual Calculations April 2023 |
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| Samartzis, Mihail Total change: -3.80 | |   |
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| 2023 Attica Friendship Cup | Attica | GRE | 2023-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1811 | 1836 | 0.50 | 1 | -0.03 | 20 | -0.60 | |
|  Bourhas, Orfeas | | | 1811 | GRE | 0.50 | 1 | -0.03 | 20 | -0.60 | |
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) | | | | 2023 Team Championship of Attica - C Category rounds 1-5 | Attica | GRE | 2023-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1761 | 1836 | 1.00 | 2 | -0.16 | 20 | -3.20 | |
| | Rigatos, Panagiotis | | | 1961 | GRE | 0.00 | 1 | -0.33 | 20 | -6.60 | |  Themeli, Dimitra | | | 1560 | GRE | 1.00 | 1 | 0.17 | 20 | 3.40 | |
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) | | |
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