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Individual Calculations July 2009 |
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| Petsas, Spyridon Total change: -5.70 | |   |
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| 2009 Attica teams Ch C div. stage 1 - Group 2 | Attica | GRE | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 1823 | 0.00 | 2 | -0.27 | 15 | -4.05 | |
|  Kokolias, Konstantinos | | | 2109 | GRE | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Skaperdas, Kostantinos | | | 2173 | GRE | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | Attica Teams Cup | Attica | GRE | 2009-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 1823 | 0.00 | 1 | -0.11 | 15 | -1.65 | |
| | Sandalakis, Angelos | | | 2173 | GRE | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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