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Individual Calculations July 2009 |
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| Sideris, Giorgos Total change: 17.00 | |   |
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| 3o OPEN IOAKIMIDIS CHESS TOURNAMENT | THESSALONIKI | GRE | 2009-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1820 | 1893 | 4.50 | 6 | 0.95 | 25 | 23.75 | |
|  Themelis, Georgios | | | 1598 | GRE | 1.00 | 1 | 0.15 | 25 | 3.75 | |  Tompros, Andreas-Hristos | | | 1770 | GRE | 0.50 | 1 | -0.17 | 25 | -4.25 | | | Bahar-Mosse, Iakov | | | 1855 | GRE | 0.50 | 1 | -0.05 | 25 | -1.25 | | | Psaltis, Aristidis | | | 1763 | GRE | 1.00 | 1 | 0.32 | 25 | 8.00 | | | Kesidis, Odyseas | | | 1958 | GRE | 1.00 | 1 | 0.59 | 25 | 14.75 | | | Kivelos, Sotirios | | | 1976 | GRE | 0.50 | 1 | 0.11 | 25 | 2.75 | |
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) | | | | 5th Spring Open Kalamaria - In memory of G.Ioakeimidis | Thessaloniki | GRE | 2009-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1893 | 1.00 | 3 | -0.42 | 25 | -10.50 | |
| | Pambalou, Fotini | | | 2141 | GRE | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Ballas, Athanasios-Panagiotis | | | 1543 | GRE | 0.50 | 1 | -0.39 | 25 | -9.75 | | | Nazarian, David | | | 2014 | GRE | 0.50 | 1 | 0.16 | 25 | 4.00 | |
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) | | | | WORLD AMATEUR CHAMPIONSHIP 2009 | Thessaloniki | GRE | 2009-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1826 | 1893 | 2.50 | 4 | 0.15 | 25 | 3.75 | |
| | Kesidis, Odyseas | | | 1933 | GRE | 0.50 | 1 | 0.06 | 25 | 1.50 | | | S Bhat, Vaibhav | | | 1784 | IND | 0.50 | 1 | -0.15 | 25 | -3.75 | | | Kafetzis, Georgios | | | 1886 | GRE | 0.50 | 1 | -0.01 | 25 | -0.25 | | | Tsakiris, Haralambos | | | 1699 | GRE | 1.00 | 1 | 0.25 | 25 | 6.25 | |
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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