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Individual Calculations February 2015 |
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| Zivontsis, Dimitrios Total change: 14.80 | |   |
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| 2015 youth championships of ESSTH-H - open U12 | Thessaloniki | GRE | 2014-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1139 | 1360 | 1.50 | 3 | -0.84 | 40 | -33.60 | |
|  Karagiannis, Emmanouil | | | 1129 | GRE | 0.50 | 1 | -0.29 | 40 | -11.60 | |  Tzovanis, Anastasios | | | 1179 | GRE | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Tsarsitalidis, Konstantinos | | | 1110 | GRE | 0.50 | 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) | | | | SS PEFKON chess academies tournament 2015 | Pefka Thessaloniki | GRE | 2015-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1149 | 1360 | 5.00 | 5 | 1.21 | 40 | 48.40 | |
| | Batzoli, Maria | | | 1024 | GRE | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Dimoulios, Ioannis | | | 1263 | GRE | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Arapis, Theodoros | | | 1093 | GRE | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Katsigris, Antonios | | | 1143 | GRE | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Pateraki, Kleopatra | | | 1224 | GRE | 1.00 | 1 | 0.32 | 40 | 12.80 | |
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) | | |
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