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Individual Calculations September 2023 |
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| Yan, Ruiyang Total change: 5.20 | |   |
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| 2023 Calchess Women's State Championship | Berkeley, Ca | USA | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 2230 | 3.00 | 3 | 0.44 | 20 | 8.80 | |
|  Byambaa, Uyanga | | wf | 2007 | MGL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Mokeeva, Zlata | | | 1830 * | RUS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Norovsambuu, Badamkhand | | | 1927 | MGL | 1.00 | 1 | 0.14 | 20 | 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) | | | | 11th Annual WIM Ruth Haring National Tournament of Girls State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1732 | 2206 | 4.50 | 5 | -0.18 | 20 | -3.60 | |
| | Fei, Irene Jiao | | | 1726 | USA | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Kumar, Asha | | | 1823 | USA | 0.50 | 1 | -0.41 | 20 | -8.20 | | | Zhou, Celina | | | 1806 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ram, Jwalanthi | | | 1491 | USA | 1.00 | 1 | 0.01 | 20 | 0.20 | | | Jou, Esther | | | 1815 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | * 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) | | |
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