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Individual Calculations July 2011 |
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| Stavrakas, Ioannis Total change: 0.60 | |   |
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| 112th Ambelokipi Open | Ambelokipi - Athens | GRE | 2011-04-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1871 | 1791 | 2.00 | 5 | 0.03 | 25 | 0.75 | |
|  Sideris, Theodoros | | | 2025 | GRE | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Arvanitakis, Panagiotis | | | 1490 | GRE | 1.00 | 1 | 0.15 | 25 | 3.75 | | | Karountzos, Nikolaos | | | 2086 | GRE | 0.00 | 1 | -0.15 | 25 | -3.75 | | | Paraskevaidis, Vasilios | | | 1908 | GRE | 1.00 | 1 | 0.66 | 25 | 16.50 | | | Kampitsis, Vasilios | | | 1845 | GRE | 0.00 | 1 | -0.42 | 25 | -10.50 | |
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) | | | NOTE: K factor changed | | 113rd Ambelokipi Open | Ambelokipi - Athens | GRE | 2011-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1735 | 1.00 | 4 | -0.01 | 15 | -0.15 | |
| | Makkas, Panayiotis | | | 1939 | GRE | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Vlahos, Athanasios | | | 1931 | GRE | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Vazelakis, Dimitrios | | | 2016 | GRE | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Kontarinis, Andreas | | | 1840 | 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) | | |
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