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Individual Calculations January 2020 |
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| Kosma, Maria Total change: -48.80 | |   |
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| 2019 Attica youth U12 team championship | ESSNA | GRE | 2019-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1142 | 1377 | 1.00 | 2 | -0.55 | 40 | -22.00 | |
|  Papadopoulos, Antonios Ioan | | | 1249 | GRE | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Magkntalani, Petros | | | 1034 | GRE | 1.00 | 1 | 0.12 | 40 | 4.80 | |
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) | | | | 1st youth open U1600 AO 3 Stars 2019 | Athens | GRE | 2019-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1272 | 1376 | 2.50 | 5 | -0.67 | 40 | -26.80 | |
| | Politis, Emmanouil | | | 1121 | GRE | 1.00 | 1 | 0.19 | 40 | 7.60 | |  Gkoritsas, Angelos | | | 1229 | GRE | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Kassios, Dimitrios | | | 1489 | GRE | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Kontos, Nikolaos | | | 1225 | GRE | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Mylonakis, Ioannis | | | 1296 | GRE | 0.50 | 1 | -0.11 | 40 | -4.40 | |
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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