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Individual Calculations September 2021 |
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| Gomez Camara, Sofia Total change: -47.20 | |   |
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| Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez Tabasco 2021 Sub 14 Femenil | Villahermosa, Tabasco | MEX | 2021-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1239 | 1432 | 1.50 | 3 | -0.69 | 40 | -27.60 | |
|  Castellanos Miguel, Mariana | | | 1149 | MEX | 0.50 | 1 | -0.34 | 40 | -13.60 | |  Cano Cervantes, Julia Maria | | | 1135 | MEX | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Diaz Bartolo, Elizabeth Schahraza | | | 1432 | MEX | 0.00 | 1 | -0.50 | 40 | -20.00 | |
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) | | | | 2021 North American Youth Chess Championships - Girls Under 14 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1587 | 1432 | 0.50 | 3 | -0.49 | 40 | -19.60 | |
| | Rajaram, Anika | | wc | 1513 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Evans, Serena | | | 1415 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Tang, Zoey | | | 1832 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | |
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