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Individual Calculations May 2010 |
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| Roinos, Ilias Total change: 12.95 | |   |
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| 2010 Attica Preliminary Team A' Division | Attica | GRE | 2010-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1687 | 1640 | 2.00 | 4 | 0.26 | 25 | 6.50 | |
|  Pessiridis, Isaak | | | 1737 | GRE | 1.00 | 1 | 0.63 | 25 | 15.75 | |  Grigoriadis, Mihail | | | 1712 | GRE | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Ladas, Dimitrios | | | 1596 | GRE | 1.00 | 1 | 0.44 | 25 | 11.00 | | | Poulopoulos, Ioannis | | | 1703 | GRE | 0.00 | 1 | -0.41 | 25 | -10.25 | |
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) | | | NOTE: K factor changed | | Easter Tournament 2010 B-Group PS Peristeriou | Peristeri - Athens | GRE | 2010-04-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1604 | 1619 | 2.50 | 4 | 0.43 | 15 | 6.45 | |
| | Stamoulis, Hristos | | | 1422 | GRE | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Korniotis, Filippos | | | 1577 | GRE | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Ladas, Dimitrios | | | 1648 | GRE | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Geropapas, Periklis | | | 1767 | GRE | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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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