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Individual Calculations September 2009 |
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| Kontogiannis, Georgios Total change: -31.25 | |   |
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| 12th Greek Indiv. Champioship open U14 | Kallithea - Halkidiki | GRE | 2009-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1702 | 1691 | 0.50 | 4 | -1.46 | 25 | -36.50 | |
|  Sourgkounis, Angelos | | | 1926 | GRE | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Hatzidimitriou, Ioannis | | | 1468 | GRE | 0.00 | 1 | -0.78 | 25 | -19.50 | | | Kafetzis, Georgios | | | 1886 | GRE | 0.00 | 1 | -0.25 | 25 | -6.25 | | | Markopoulos, Dimitrios-Nikolaos | | | 1528 | GRE | 0.50 | 1 | -0.22 | 25 | -5.50 | |
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) | | | | Ikaros Chess Festival 2009 | 2009 Aegean Open Championship | GRE | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 1691 | 0.50 | 3 | 0.21 | 25 | 5.25 | |
| | Lagopatis, Nikolaos | | | 2091 * | GRE | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Tsiotridis, Panayotis | | | 2009 | GRE | 0.50 | 1 | 0.37 | 25 | 9.25 | | | Swati, Mohota | | wf | 2091 * | IND | 0.00 | 1 | -0.08 | 25 | -2.00 | | | * 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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