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Individual Calculations January 2011 |
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| Arbore, Federica Total change: -33.75 | |   |
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| World Youth Chess Championships 2010 - Girls under 14 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1823 | 1676 | 0.50 | 4 | -0.75 | 25 | -18.75 | |
|  Navrotescu, Andreea-Cristiana | | | 1910 | FRA | 0.50 | 1 | 0.29 | 25 | 7.25 | |  Loaiza, Yurani | | | 1899 | COL | 0.00 | 1 | -0.22 | 25 | -5.50 | | | Cyboran, Katarzyna | | | 1800 | POL | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Cosman, Andreea-Marioara | | | 1682 | ROU | 0.00 | 1 | -0.49 | 25 | -12.25 | |
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 | | WE 19 Palestrina | Palestrina | ITA | 2010-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1826 | 1615 | 0.00 | 4 | -1.00 | 15 | -15.00 | |
| | Panella, Fiammetta | | | 2012 | ITA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Niciperenco, Mihail Aureli | | | 1832 | ROU | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Musmarra, Giovanni | | | 1652 | ITA | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Vannelli, Vittorio | | | 1807 | ITA | 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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