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Individual Calculations April 2009 |
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| Kotrotsos, Vasilios Total change: 10.35 | |   |
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| Bikou Cup 1st Division | Attica - Local Clubs | GRE | 2008-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 2349 | 1.50 | 2 | -0.24 | 15 | -3.60 | |
|  Ikonomopoulou, Maria | | | 2052 | GRE | 0.50 | 1 | -0.35 | 15 | -5.25 | |  Alexopoulos, Alexios | | | 1999 | GRE | 1.00 | 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) | | | | 1o Ambelokipi Christmas Open | Ambelokipi - Athens | GRE | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2349 | 5.50 | 6 | 1.05 | 15 | 15.75 | |
| | Fanourgakis, Konstantinos | | | 1999 | GRE | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Koerant, Filipos | | | 2072 | GRE | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Tepelenis, Nikolaos | | | 2156 | GRE | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Khetsuriani, Besarion | m | | 2336 | GRE | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Skalkotas, Nikolaos | m | | 2276 | GRE | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Sideris, Theodoros | | | 2034 | GRE | 1.00 | 1 | 0.14 | 15 | 2.10 | |
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 team ch prelim. A div. | Attica | GRE | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2341 | 4.50 | 7 | -0.12 | 15 | -1.80 | |
| | Shahtahtinsky, Alekper | f | | 2296 | GRE | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Litsas, Ioannis | | | 2197 | GRE | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Zournatsidis, Evgenios | | | 2126 | GRE | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Georgiou, Kostantinos | | | 2259 | GRE | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Simeonidis, Ioannis | | | 2303 | GRE | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Panagiotakos, Nikolaos | | | 2145 | GRE | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Papadatos, Ioannis | | | 2197 | GRE | 1.00 | 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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