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Individual Calculations September 2023 |
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| Vilca Contreras, Dante Ivan Total change: 0.80 | |   |
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| XIV Festival Internacional de Ajedrez Claretiano 2023 Sub - 12 | Lima | PER | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1270 | 1550 | 5.00 | 6 | 0.12 | 40 | 4.80 | |
|  Huaracc, Yarasca Darian Lucas | | | 1141 | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Pareja Pacco, Rodrigo Andre | | | 1150 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Casqui Lopez, Pamela Grace | | | 1252 | PER | 0.50 | 1 | -0.35 | 40 | -14.00 | | | Gilian Solano, Justin Matias | | | 1319 | PER | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Montoya Jorge, Richard Lionel | | | 1229 | PER | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Vasquez Lopez, Josue Gabriel | | | 1526 | PER | 1.00 | 1 | 0.47 | 40 | 18.80 | | | * 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) | | | | XXXIII Pan-American Youth Chess Festival - Under 12 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1527 | 1488 | 1.50 | 5 | -0.97 | 40 | -38.80 | |
| | Ho, Carter | | | 1999 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Xu, Alan | | | 1278 | USA | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Lee, Daniel Joshua | | | 1287 | CAN | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Ramesh, Nehanraj | | | 1322 | USA | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Diaz Guerrero, Jesus Daniel | | | 1747 | MEX | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | | Campeonato Regional de Ajedrez Metropolitano Impar Sub 13 Absoluto | Lima | PER | 2023-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1400 | 1488 | 4.50 | 6 | 0.87 | 40 | 34.80 | |
| | Gomez Jalixto, Matthew Yahir | | | 1137 | PER | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Valdez Maravi, Angel Yhadiel | | | 1227 | PER | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Fernandez Monteza, Fabian Arturo | | | 1351 | PER | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Reyes Zavaleta, Cristhian Yamil | | | 1770 | PER | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Abad Huaman, Adrian Estiven | | | 1559 | PER | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Salas Gonzales, David Ademar | | | 1356 | PER | 0.50 | 1 | -0.18 | 40 | -7.20 | |
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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