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Individual Calculations September 2019 |
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| Wu, Abbie Total change: -56.00 | |   |
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| Panamericano de la Juventud 2019 sub 10 femenino | Guayaquil | ECU | 2019-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1247 | 1528 | 5.00 | 7 | -0.73 | 40 | -29.20 | |
|  Mayeregger Gonzalez, Fiorella | | | 1139 | PAR | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Vizcarra, Quispe Ramalia | | | 1245 | PER | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Gu, Crystal Jiuzhou | | | 1318 | USA | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Romero Velasquez, Jimena | | | 1128 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Vidyarthi, Omya | | wc | 1482 | USA | 0.50 | 1 | -0.06 | 40 | -2.40 | | | Arenas Lavado, Luciana Andrea | | | 1187 | PER | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Mayorga Araya, Sofia | | | 1233 | CRC | 1.00 | 1 | 0.15 | 40 | 6.00 | | | * 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) | | | | 2019 NAYCC U10 Girls | Kingston | CAN | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1385 | 1623 | 2.50 | 4 | -0.67 | 40 | -26.80 | |
| | Nandini, Prakash | | | 1416 | USA | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Lucy, Gao | | | 1288 | CAN | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Greta, Qu | | wc | 1427 | CAN | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Jinrong, Winnie Zhuang | | | 1408 | CAN | 1.00 | 1 | 0.23 | 40 | 9.20 | |
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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