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Individual Calculations January 2011 |
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| Efroimski, Marsel Total change: -18.75 | |   |
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| World Youth Chess Championships 2010 - Girls under 18 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 2244 | 7.00 | 11 | -0.53 | 15 | -7.95 | |
|  Trapeznikova, Darya | | | 1998 | RUS | 1.00 | 1 | 0.19 | 15 | 2.85 | |  Purgar, Ivona | | wf | 2092 | CRO | 0.00 | 1 | -0.70 | 15 | -10.50 | | | Herrera Sosa, Jessica | | wf | 1964 | VEN | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Kaya, Emel | | wc | 2070 | TUR | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Travkina, Anastasia | | wf | 2189 | RUS | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Rakhmangulova, Anastasiya | | | 2154 | UKR | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Suarez Calvo, Alesandra | | | 2006 | ESP | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Newrkla, Katharina | | wf | 2123 | AUT | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Endress, Anna | | | 2160 | GER | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Iordanidou, Zoi | | | 2152 | GRE | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Hoang, Thi Nhu Y | | wm | 2214 | VIE | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | | | Intl. Festival PT 2010 IM | Petach Tikva | ISR | 2010-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2317 | 2244 | 2.50 | 8 | -0.72 | 15 | -10.80 | |
| | Gershkowich, David | f | | 2311 | ISR | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Arlinsky, Uriel | f | | 2248 | ISR | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Kantsler, Boris | g | | 2440 | ISR | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Shutzman, Joseph | f | | 2267 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Rabinovich, Joseph | | | 2278 | RUS | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Kudischewitsch, David | m | | 2366 | RUS | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Boruchovsky, Avital | | | 2238 | ISR | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Nedobora, Mikhail | m | | 2384 | UKR | 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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