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Individual Calculations January 2013 |
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| Koutsidis, Achilleas Total change: 0.45 | |   |
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| 2012 Attica Youth U16 Team Championship | Attica | GRE | 2012-09-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1636 | 1685 | 2.00 | 4 | -0.24 | 15 | -3.60 | |
|  Karakatsanis, Nikolaos | | | 1565 | GRE | 0.00 | 1 | -0.66 | 15 | -9.90 | |  Korniotis, Filippos | | | 1859 | GRE | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Kouskoutis, Georgios-Alexandros | | | 1695 | GRE | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Kontogiannis, Alexandros L | | | 1426 | GRE | 1.00 | 1 | 0.18 | 15 | 2.70 | |
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) | | | | Team Cup SPIROS BIKOS 2012 - Group A | Attica | GRE | 2012-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1892 | 1696 | 1.50 | 4 | 0.44 | 15 | 6.60 | |
| | Hristidis, Savas | | | 1785 | GRE | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Koursaris, Nikolaos | | | 1802 | GRE | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Antoniou, Dimitrios | | | 1941 | GRE | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Polyhronopoulos, Andreas | | | 2039 | GRE | 0.00 | 1 | -0.12 | 15 | -1.80 | |
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) | | | | KAISSA 18 open Chess Tournament | Athens | GRE | 2012-11-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1789 | 1696 | 1.00 | 3 | -0.17 | 15 | -2.55 | |
| | Mitrandzas, Athanasios | | | 2096 * | GRE | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Koutsidi, Amalia | | | 1327 | GRE | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Anairousis, Panag | | | 1945 | GRE | 0.00 | 1 | -0.19 | 15 | -2.85 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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