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Individual Calculations September 2023 |
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| Torres Alarcon, Luciana Yanella Total change: 28.80 | |   |
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| I Open IRT Club Regatas sub 2400 | Lima | PER | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1599 | 1165 | 0.50 | 2 | 0.27 | 40 | 10.80 | |
|  Acevedo Chavez, Freddy Adrian | | | 1808 | PER | 0.00 | 1 | -0.01 | 40 | -0.40 | |  Cardenas Huachaca, Alessandro Jai | | | 1390 | PER | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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) | | | | XIV Festival Internacional de Ajedrez Claretiano 2023 Sub - 12 | Lima | PER | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1303 | 1165 | 1.50 | 4 | 0.23 | 40 | 9.20 | |
| | Mollo Figueroa, Nicole | | | 1411 | BOL | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Navarro Costa, Alejandro Mauricio | | | 1231 | PER | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Gilian Solano, Justin Matias | | | 1319 | PER | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Casqui Lopez, Pamela Grace | | | 1252 | PER | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 12 Female | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1393 | 1187 | 1.50 | 5 | 0.22 | 40 | 8.80 | |
| | Zhang, Michelle | | | 1430 | USA | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Laido, Olivia | | | 1583 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Li, Audrey Keyan | | | 1397 | USA | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Tse, Whitney | | | 1384 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Arivoli, Aradhana | | | 1171 | USA | 0.50 | 1 | -0.02 | 40 | -0.80 | |
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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