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Individual Calculations April 2023 |
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| Petropoulos, Filaretos Total change: 10.40 | |   |
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| 183rd Open Ampelokipi CC Jan 2023 | Athens | GRE | 2023-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1517 | 1550 | 2.50 | 5 | -0.23 | 20 | -4.60 | |
|  Panaidis, Fragkiskos | | | 1202 | GRE | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Delithanasis, Dimitrios | | | 1913 | GRE | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Palios, Panteleimon | | | 1286 | GRE | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Maratos, Antonios | | | 1349 | GRE | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Hahabis, Nikolaos | | | 1837 | GRE | 0.50 | 1 | 0.34 | 20 | 6.80 | |
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 Attica Friendship Cup | Attica | GRE | 2023-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1473 | 1550 | 3.00 | 4 | 0.71 | 20 | 14.20 | |
| | Ieromonachos, Georgios | | | 1150 * | GRE | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tragoudaras, Nikolaos | | | 1888 | GRE | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Nikolaidis, Athanasios | | | 1643 | GRE | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Traiforou, Georgia | | | 1212 | GRE | 1.00 | 1 | 0.12 | 20 | 2.40 | | | * 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) | | | | 2023 Team Championship of Attica - C Category rounds 1-5 | Attica | GRE | 2023-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1850 | 1550 | 0.50 | 3 | 0.04 | 20 | 0.80 | |
| | Kalofonos, Panayotis | | | 1860 | GRE | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Katsiris, Ioannis | | | 1919 | GRE | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Lymperopoulos, Georgios | | | 1771 | GRE | 0.50 | 1 | 0.28 | 20 | 5.60 | |
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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