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Individual Calculations April 2009 |
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| Panagiotakos, Petros Total change: 0.30 | |   |
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| Bikou Cup 1st Division | Attica - Local Clubs | GRE | 2008-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 1882 | 1.50 | 5 | -0.91 | 15 | -13.65 | |
|  Zenelis, Konstantinos | | | 2161 | GRE | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Efthimiou, Georgios | | | 1838 | GRE | 0.00 | 1 | -0.56 | 15 | -8.40 | |  Bekakos, Mihail | | | 1674 | GRE | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Koutsibos, Konstantinos | | | 1848 | GRE | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Vrouvakis, Mattheos | | | 1980 | GRE | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | 93th Ambelokipi Open | Ambelokipi, Athens | GRE | 2009-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1854 | 1882 | 2.50 | 5 | -0.23 | 15 | -3.45 | |
| | Khetsuriani, Besarion | m | | 2232 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kontos, Vasilios | | | 1645 | GRE | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Efkarpidis, Stylianos | | | 1655 | GRE | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Koerant, Filipos | | | 2095 | GRE | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Stergiou, Georgios | | | 1643 | GRE | 1.00 | 1 | 0.20 | 15 | 3.00 | |
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) | | | | 2009 Attica teams Ch. A' local div. - Group 1 | Attica | GRE | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1907 | 1882 | 2.00 | 3 | 0.61 | 15 | 9.15 | |
| | Kalogiannis, Andreas | | | 1956 | GRE | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Mitsakos, Achilleas | | | 1784 | GRE | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Apostolidis, Ioannis | | | 1981 | GRE | 1.00 | 1 | 0.64 | 15 | 9.60 | |
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) | | | | 5th Memorial Siaperas | Ambelokipi Athens | GRE | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1819 | 1882 | 4.00 | 6 | 0.55 | 15 | 8.25 | |
| | Arvanitakis, Panagiotis | | | 1532 | GRE | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Nteoudis, Konstantinos | | | 1589 | GRE | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Poteas, Ioannis | | | 2201 | GRE | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Megaloudis, Petros | | | 1822 | GRE | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Karlis, Nikolaos | | | 1742 | GRE | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Papapetropoulos, Periklis | | | 2025 | GRE | 0.00 | 1 | -0.31 | 15 | -4.65 | |
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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