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Individual Calculations April 2023 |
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| Siranidis, Petros Total change: -9.60 | |   |
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| 36th open PS Peristeriou 2023 B | Peristeri | GRE | 2023-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1133 | 1152 | 0.50 | 2 | -0.54 | 40 | -21.60 | |
|  Kiryttopoulou, Eleonora Kaisa | | | 1007 | GRE | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Theodoropoulos, Dimitrios Th | | | 1259 | GRE | 0.00 | 1 | -0.35 | 40 | -14.00 | |
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) | | | | 2023 Attica Friendship Cup | Attica | GRE | 2023-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1263 | 1152 | 1.50 | 3 | 0.30 | 40 | 12.00 | |
| | Psaromiligkos, Konstantinos | | | 1579 | GRE | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Hristoforidis, Savvas | | | 1198 | GRE | 0.50 | 1 | 0.06 | 40 | 2.40 | |  Sotirakopoulos, Panagiotis | | | 1011 | GRE | 1.00 | 1 | 0.31 | 40 | 12.40 | |
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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