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Individual Calculations August 2017 |
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| Sandoval Rivera, Alejandra Total change: 6.40 | |   |
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| Panamerican Youth Championship 2017 Girls U-12 | San Jose | CRC | 2017-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1544 | 1288 | 3.00 | 7 | 1.63 | 40 | 65.20 | |
|  Castano, Saray | | | 1569 | COL | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Perez Hernandez, Vicmary C. | | | 1619 | VEN | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Yellamraju, Aparna | | | 1407 | USA | 1.00 | 1 | 0.66 | 40 | 26.40 | |  Figueroa Bernal, Julia Dennis | | wc | 1660 | CHI | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Miyasaka, Julia K | | | 1599 | USA | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Nguyen, Anh Nhu | | wc | 1494 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Martinez Zambrano, Karina Paola | | | 1462 | ECU | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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) | | | | 2017 North American Youth Chess Championship - U12 Girls | Morristown, New Jersey | USA | 2017-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1404 | 1288 | 0.00 | 4 | -1.47 | 40 | -58.80 | |
| | Doron-Repa, Maya | | | 1568 | USA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Miyasaka, Julia | | | 1599 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Wisniowski, Natalie | | wc | 1326 | USA | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Venkataraja, Triyakshari | | | 1123 | USA | 0.00 | 1 | -0.72 | 40 | -28.80 | |
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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