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Individual Calculations January 2009 |
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| Serefidou, Despina Total change: 70.35 | |   |
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| European Youth Chess Championship 2008 - Girls U12 | Herceg Novi | MNE | 2008-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1755 | 1525 | 2.50 | 5 | 1.44 | 25 | 36.00 | |
|  Nikolovska, Dragana | | | 1732 | MKD | 1.00 | 1 | 0.77 | 25 | 19.25 | |  Khazieva, Elza | | | 1739 | RUS | 0.50 | 1 | 0.27 | 25 | 6.75 | | | Bellaiche, Elise | | | 1769 | FRA | 0.00 | 1 | -0.20 | 25 | -5.00 | | | Visanescu, Daria-Ioana | | wf | 1802 | ROU | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Pastuszko, Kinga | | | 1735 | POL | 1.00 | 1 | 0.77 | 25 | 19.25 | |
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 | | 1st Greek Youth Under 16 Team Championship 2008 | CHalkida | GRE | 2008-10-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1686 | 1539 | 1.00 | 1 | 0.70 | 15 | 10.50 | |
| | Tsolaki, Eleni | | | 1686 | GRE | 1.00 | 1 | 0.70 | 15 | 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 | | World Youth Chess Championships 2008 - Girls 12 | Vung Tau | VIE | 2008-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1810 | 1539 | 3.00 | 7 | 1.78 | 15 | 26.70 | |
| | Styazhkina, Anna | | wf | 1889 | RUS | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Nandhidhaa, P V | | | 1823 | IND | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Pratyusha, Bodda | | | 1889 | IND | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Tomin, Ksenija | | | 1756 | SRB | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Navya, Vyshnavi Mannepalli | | | 1729 | IND | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Moradi, Kimia | | | 1766 | IRI | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Shamatava, Ana | | | 1819 | GEO | 0.00 | 1 | -0.16 | 15 | -2.40 | |
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 | | INDIV. TOURN. EAST MACEDONIA-THRAKE '08 -B' GROUP | KAVALA | GRE | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1760 | 1539 | 0.50 | 3 | -0.19 | 15 | -2.85 | |
| | Vatkali, Dimitra | | | 1877 | GRE | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Tsakiris, Haralambos | | | 1723 | GRE | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Kipraki, Nikoleta | | | 1680 | GRE | 0.50 | 1 | 0.19 | 15 | 2.85 | |
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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