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Individual Calculations September 2021 |
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| Benito De Leo, Estefania Total change: -4.00 | |   |
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| Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez Tabasco 2021 Sub 18 Femenil | Villahermosa, Tabasco | MEX | 2021-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1475 | 1651 | 4.50 | 5 | 0.95 | 40 | 38.00 | |
|  Cabrera Cruz, Brenda Elisa | | | 1652 | MEX | 1.00 | 1 | 0.50 | 40 | 20.00 | |  Valdes, Alvarez Lilia Cristina | | | 1251 * | MEX | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Mendoza Recio, Josselyne | | | 1552 | MEX | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Rodriguez Marquez, Luz Mar | | | 1420 | MEX | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Del Razo Mendoza, Andrea Nikole | | | 1499 | MEX | 1.00 | 1 | 0.30 | 40 | 12.00 | | | * 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) | | | | 2021 North American Youth Chess Championships - Girls Under 18 | Chicago, Illinois | USA | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1763 | 1651 | 1.50 | 7 | -1.05 | 40 | -42.00 | |
| | Vittal, Sanjana | | wf | 1920 | USA | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Wisniowski, Natali | | wc | 1723 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Matus, Nastassja A | | wf | 1906 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Caballero, Alonso Alexa Amairanh | | | 1602 | MEX | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Dommalapati, Aasa | | wc | 1713 | USA | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Mendoza Recio, Josselyne | | | 1552 | MEX | 0.50 | 1 | -0.14 | 40 | -5.60 | | | Ehsani, Yassamin | | wf | 1923 | USA | 0.00 | 1 | -0.17 | 40 | -6.80 | |
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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