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Individual Calculations September 2009 |
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| Koukoufikis, Ioannis Total change: -4.35 | |   |
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| 13th Heraklio Open 2009 - Group B | N.Heraklio - Attiki | GRE | 2009-06-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1650 | 1826 | 3.00 | 5 | -0.58 | 15 | -8.70 | |
|  Vraimakis, Ioannis | | | 1561 | GRE | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Sotiriadou, Ioanna | | | 1542 | GRE | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Kolomvas, Dimitrios | | | 1895 | GRE | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Stergiou, Georgios | | | 1661 | GRE | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Athanasopoulos, Stavros | | | 1589 | GRE | 0.00 | 1 | -0.80 | 15 | -12.00 | |
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) | | | | Ikaros Chess Festival 2009 | 2009 Aegean Open Championship | GRE | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1885 | 1822 | 3.50 | 7 | 0.29 | 15 | 4.35 | |
| | Groetz, Harald | m | | 2222 * | AUT | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Kontogianni, Maria-Hristina | | | 1620 | GRE | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Halkiadakis, Evangelos | | | 1639 | GRE | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Grabinsky, Vladimir | m | | 2222 * | UKR | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Vazoura, Eleftheria | | | 1626 | GRE | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Seretakis, Nikolas | | | 2214 | GRE | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Papadopoulos, Georgios | | | 1653 | GRE | 1.00 | 1 | 0.28 | 15 | 4.20 | | | * 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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