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| 2 Open IRT U1800 Circulo Peruano de Ajedrez | Lima | PER | 2023-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1438 | 1328 | 5.50 | 9 | 2.11 | 28 | 59.08 | |
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 Garay Ramirez, Estefano Javier | | | 1712 | PER | 0.00 | 1 | -0.09 | 28 | -2.52 | |
 Callupe Matias, Obed Esteban | | | 1213 | PER | 1.00 | 1 | 0.34 | 28 | 9.52 | |
| Castillo Vasquez, Abel Vanner | | | 1278 | PER | 1.00 | 1 | 0.43 | 28 | 12.04 | |
| Bendezu Yupanqui, Albert Martin | | | 1676 | PER | 0.00 | 1 | -0.11 | 28 | -3.08 | |
| Salas Gonzales, David Ademar | | | 1372 | PER | 1.00 | 1 | 0.56 | 28 | 15.68 | |
| De La Cruz De La Roca, Alan Rafae | | | 1420 | PER | 0.50 | 1 | 0.13 | 28 | 3.64 | |
| Ramirez Mori, Angel Farid | | | 1530 | PER | 1.00 | 1 | 0.76 | 28 | 21.28 | |
| Herrada, Blanco Maria Fernanda | | | 1593 | PER | 0.00 | 1 | -0.18 | 28 | -5.04 | |
| Gomez Jalixto, Matthew Yahir | | | 1151 | PER | 1.00 | 1 | 0.27 | 28 | 7.56 | |
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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| XIX Festival Sul-Americano da Juventude 2023 STD - U14 Absoluto | Florianopolis SC | BRA | 2023-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1726 | 1331 | 4.50 | 9 | 3.39 | 28 | 94.92 | |
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| Macedo, Yan Emanuel Porto | | | 1778 | BRA | 0.50 | 1 | 0.44 | 28 | 12.32 | |
| Silva, Henrique Brasil Barrientos | | | 1689 | BRA | 1.00 | 1 | 0.90 | 28 | 25.20 | |
| Rueda Rojas, Richard Alejandro | | | 1857 | COL | 1.00 | 1 | 0.97 | 28 | 27.16 | |
| Bazan, Octavio Aaron | | | 1988 | ARG | 0.50 | 1 | 0.49 | 28 | 13.72 | |
| De Lima , Adriano Gaspar | | | 1920 | ARG | 0.00 | 1 | -0.02 | 28 | -0.56 | |
| Calcada, Henrique Galvan | | | 1748 | BRA | 1.00 | 1 | 0.93 | 28 | 26.04 | |
| Nascimento, Kaio Vinicius Da Trin | | | 1368 | BRA | 0.00 | 1 | -0.45 | 28 | -12.60 | |
| Sanchez Negreiros, Jose Alberto | | | 1643 | PER | 0.00 | 1 | -0.14 | 28 | -3.92 | |
| De Souza, Joao Francisco Biz | | | 1539 | BRA | 0.50 | 1 | 0.27 | 28 | 7.56 | |
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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| IV Campeonato Sudamericano Escolar de Ajedrez 2023 - Sub 13 Absoluto | Lima | PER | 2023-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1302 | 1331 | 4.00 | 7 | 0.24 | 28 | 6.72 | |
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| Quispe Ima, Edson Snayder | | | 1086 | PER | 1.00 | 1 | 0.20 | 28 | 5.60 | |
| Rodriguez Chambi, Fabrizio Santia | | | 1200 | PER | 0.50 | 1 | -0.18 | 28 | -5.04 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1340 | PER | 1.00 | 1 | 0.51 | 28 | 14.28 | |
| Villaverde Salas, Gonzalo Matias | | | 1443 | PER | 0.00 | 1 | -0.35 | 28 | -9.80 | |
| Huaracc, Yarasca Darian Lucas | | | 1253 | PER | 0.50 | 1 | -0.11 | 28 | -3.08 | |
| Acho Yujra, Adhemar Logan | | | 1436 | BOL | 0.50 | 1 | 0.14 | 28 | 3.92 | |
| Choque Aparco, Esteban Abel | | | 1355 | PER | 0.50 | 1 | 0.03 | 28 | 0.84 | |
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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