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Individual Calculations May 2015 |
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| Potoulis, Ioannis Total change: 20.80 | |   |
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| 2015 Team Championshiop POA ESSTH-HALK r2-4 | ESSTH-HALK | GRE | 2015-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1118 | 1133 | 1.00 | 2 | -0.04 | 40 | -1.60 | |
|  Peikos, Rafail | | | 1087 | GRE | 1.00 | 1 | 0.44 | 40 | 17.60 | |  Tsarsitalidis, Konstantinos | | | 1149 | GRE | 0.00 | 1 | -0.48 | 40 | -19.20 | |
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) | | | | 2015 Team Championshiop POA ESSTH-HALK r5-8 | ESSTH-HALK | GRE | 2015-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1240 | 1133 | 0.50 | 2 | -0.21 | 40 | -8.40 | |
| | Tzovanis, Anastasios | | | 1218 | GRE | 0.50 | 1 | 0.12 | 40 | 4.80 | | | Kofkelis, Eleftherios | | | 1261 | GRE | 0.00 | 1 | -0.33 | 40 | -13.20 | |
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) | | | | 8th Spring Open of Triandria 2015 - B group | Thessaloniki | GRE | 2015-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1239 | 1133 | 2.00 | 4 | 0.55 | 40 | 22.00 | |
| | Nikolaou, Theodoros | | | 1045 | GRE | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Dritsas, Stavros Nikolaos | | | 1298 | GRE | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Galani, Dimitra | | | 1311 | GRE | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Xanthos, Konstantinos | | | 1302 | GRE | 0.00 | 1 | -0.28 | 40 | -11.20 | |
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) | | | | 2015 Team Championshiop POA ESSTH-HALK r9 | ESSTH-HALK | GRE | 2015-04-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1298 | 1133 | 0.50 | 1 | 0.22 | 40 | 8.80 | |
| | Dritsas, Stavros Nikolaos | | | 1298 | GRE | 0.50 | 1 | 0.22 | 40 | 8.80 | |
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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