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Individual Calculations September 2009 |
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| Arguello Vinueza, Bertha Total change: -40.50 | |   |
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| XIV Grand Prix, 6ta. Parada "Fundacion de Guayaquil" | Guayaquil | ECU | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 1701 | 0.00 | 4 | -1.05 | 25 | -26.25 | |
|  Ordonez Antequera, Aldison | | | 1907 | ECU | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Orejuela Chango, Cristina | | | 1845 | ECU | 0.00 | 1 | -0.31 | 25 | -7.75 | | | Villegas Reyes, Maria | | | 1761 | ECU | 0.00 | 1 | -0.42 | 25 | -10.50 | |  Galefski, Eduardo | | | 2101 * | CHI | 0.00 | 1 | -0.08 | 25 | -2.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | XX Panamericano Mar del Plata U12 Fem | Mar del Plata | ARG | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 1701 | 1.00 | 4 | -0.57 | 25 | -14.25 | |
| | Romero, Daniela | | | 2093 | COL | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Smith, Javanna | | wc | 1924 | TRI | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Nunez Aguirre, Lucia | | | 1653 | PER | 0.00 | 1 | -0.57 | 25 | -14.25 | | | Moreno, Micaela | | | 1554 | PAR | 0.50 | 1 | -0.20 | 25 | -5.00 | |
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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