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Individual Calculations January 2011 |
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| Castro Acuna, Joansie Total change: -3.25 | |   |
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| CAMPEONATO PANAMERICANO DE AJEDREZ ESCOLAR - SUB 13 FEMENINO | LIMA, PERU | PER | 2010-12-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1642 | 1665 | 2.00 | 4 | -0.13 | 25 | -3.25 | |
|  Vintimilla Pena, Amarelis | | | 1612 | ECU | 0.00 | 1 | -0.57 | 25 | -14.25 | | | Rosales Murillo, Cristina | | | 1630 | ECU | 1.00 | 1 | 0.45 | 25 | 11.25 | |  Garcia Contreras, Ana | | | 1771 | PER | 0.00 | 1 | -0.36 | 25 | -9.00 | | | Olaya, Sandra | | | 1556 | ECU | 1.00 | 1 | 0.35 | 25 | 8.75 | |
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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