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Individual Calculations July 2015 |
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| Liu, Joanna Total change: 30.40 | |   |
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| North American Youth Chess Festival 2015 U14 Women | Toluca, Estado de Mexico | MEX | 2015-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1535 | 1819 | 3.00 | 4 | -0.31 | 40 | -12.40 | |
|  Roque Sola, Andrea | | wc | 1676 | MEX | 0.50 | 1 | -0.19 | 40 | -7.60 | |  Salas Estrada, Ana Valeria | | | 1543 | MEX | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Tao, Ellen | | | 1419 * | CAN | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Ramirez Toledo, Ayleen Mar | | | 1502 | MEX | 0.50 | 1 | -0.37 | 40 | -14.80 | | | * 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) | | | | US Women's Open | Las Vegas, Nevada | USA | 2015-06-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1827 | 1.50 | 2 | 0.54 | 40 | 21.60 | |
| | Nguyen, Emily Quyn | | wf | 1929 | USA | 0.50 | 1 | 0.14 | 40 | 5.60 | | | Zemke, Christine | | | 1752 | GER | 1.00 | 1 | 0.40 | 40 | 16.00 | |
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) | | | | 2015 National Open U2200 | Las Vegas, Nevada | USA | 2015-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1838 | 1827 | 1.50 | 2 | 0.53 | 40 | 21.20 | |
| | Cassidy, Ryan Andr | | | 1814 | USA | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Metpally, Jason | | | 1861 | USA | 0.50 | 1 | 0.05 | 40 | 2.00 | |
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) | | |
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