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Individual Calculations July 2021 |
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| Gu, Crystal Jiuzhou Total change: 22.40 | |   |
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| 2021 US Women's Open | Las Vegas, Nevada | USA | 2021-06-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1435 | 1365 | 1.00 | 3 | -0.34 | 40 | -13.60 | |
|  Letard, Willow Katrina | | | 1273 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | |  Heredia, Carla | | wg | 1765 * | ECU | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Zhang, Elena | | | 1268 | USA | 0.00 | 1 | -0.63 | 40 | -25.20 | | | * 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) | | | | 2021 National Open - Under 2300 | Las Vegas, Nevada | USA | 2021-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1690 | 1365 | 1.50 | 4 | 0.90 | 40 | 36.00 | |
| | Doyle, Bryon | | | 1765 * | USA | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Williams, John M | | | 1765 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Lopez De Nava Hernandez, Carlos | | | 1765 * | MEX | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tang, Benjamin Benchen | | | 1464 | USA | 1.00 | 1 | 0.64 | 40 | 25.60 | | | * 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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