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Individual Calculations April 2009 |
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| Petridis, Evagelos Total change: -25.75 | |   |
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| 2009 Attica teams Ch A' local div. - Group 2 | Attica | GRE | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 1848 | 1.00 | 1 | 0.37 | 25 | 9.25 | |
|  Samartzis, Mihail | | | 1756 | GRE | 1.00 | 1 | 0.37 | 25 | 9.25 | |
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) | | | | 1st Winter Open SOP - SMAOK | Pagkrati - Athens | GRE | 2009-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1859 | 1848 | 2.00 | 7 | -1.40 | 25 | -35.00 | |
| | Manolaraki, Yvonni | | | 2081 | GRE | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Kolomvas, Dimitrios | | | 1940 | GRE | 0.00 | 1 | -0.37 | 25 | -9.25 | | | Soursos, Panayotis | | | 1703 | GRE | 0.00 | 1 | -0.69 | 25 | -17.25 | | | Antoniadis, Konstantinos | | | 1848 | GRE | 1.00 | 1 | 0.50 | 25 | 12.50 | | | Hatzigeorgiou, Mihail | | | 1919 | GRE | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Maroulakos, Stavros | | | 1768 | GRE | 0.00 | 1 | -0.61 | 25 | -15.25 | | | Georgopoulou, Anastasia | | | 1757 | GRE | 1.00 | 1 | 0.38 | 25 | 9.50 | |
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) | | |
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