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Individual Calculations April 2008 |
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| Tsiahtsiras, Georgios Total change: 19.95 | |   |
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| BOYS UNDER 18 THESSALONIKI 2007 (PRELIM) | THESSALONIKI | GRE | 2007-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 1731 | 1.50 | 4 | 0.72 | 15 | 10.80 | |
|  Bizopoulos, Alexandros | | | 2068 | GRE | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Papadopoulos, Panayotis | | | 1779 | GRE | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Pambalos, Panayiotis | | | 2066 | GRE | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Iskos, Alexandros | | | 2081 | 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) | | | | BOYS UNDER 16 - THESSALONIKI CHAMPIONSHIP | THESSALONIKI | GRE | 2008-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1843 | 1728 | 2.00 | 4 | 0.61 | 15 | 9.15 | |
| | Diktapanidis, Efstathios | | | 1820 | GRE | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Neroulidis, Mihalis | | | 1804 | GRE | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Thrasivoulidis, Orestis | | | 1822 | GRE | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Konstantinidis, Lazaros | | | 1925 | GRE | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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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