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Individual Calculations July 2019 |
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| Tzavaras, Konstantinos Total change: -1.80 | |   |
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| 22nd International Open Athens Challenge 2019 - Group B | Heraklio Attikis | GRE | 2019-06-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1338 | 1220 | 1.00 | 3 | -0.09 | 20 | -1.80 | |
|  Zygourakis, Themistoklis | | | 1444 | GRE | 0.00 | 1 | -0.22 | 20 | -4.40 | |  Argyris, Ioannis | | | 1033 | GRE | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Frosinos, Ioannis | | | 1538 | GRE | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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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