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Individual Calculations September 2021 |
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| Ehsani, Yassamin Total change: 11.60 | |   |
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| 9th Annual WIM Ruth Haring National Tournament of Girls State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1734 | 1936 | 4.00 | 6 | -0.33 | 40 | -13.20 | |
|  Braddy, Elizabeth R | | | 1536 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Woods, Charisse | | | 1636 | USA | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Tien, Sophie | | | 1696 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Yan, Ruiyang | | wc | 2111 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Liu, Kelsey | | | 1536 * | USA | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Kumar, Arya | | | 1887 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | * 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 |
| 1840 | 1923 | 6.00 | 9 | 0.62 | 40 | 24.80 | |
| | Gaw, Chloe | | | 1685 | USA | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Carrillo Aguayo, Bertha Hiromi | | | 1604 | MEX | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Zeng, Sheena | | wc | 2078 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Prasanna, Gracy Franco | | | 1897 | USA | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Mou, Iris | | wc | 1828 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Vittal, Sanjana | | wf | 1920 | USA | 0.50 | 1 | 0.00 | 40 | 0.00 | | | Lee, Alice Teresa | | wc | 1994 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Matus, Nastassja A | | wf | 1906 | USA | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Benito De Leo, Estefania | | | 1651 | MEX | 1.00 | 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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