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| 4 Open IRT U2400 Circulo Peruano de Ajedrez | Lima | PER | 2023-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1600 | 2026 | 6.00 | 7 | -0.42 | 19 | -7.98 | |
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 Rojas Salas, Rihanna Irina | | | 1626 * | PER | 1.00 | 1 | 0.08 | 19 | 1.52 | |
 Maravi Ceron, Ayme | | | 1443 | PER | 1.00 | 1 | 0.02 | 19 | 0.38 | |
| Vilca Contreras, Dante Ivan | | | 1550 | PER | 1.00 | 1 | 0.05 | 19 | 0.95 | |
| Bendezu Yupanqui, Albert Martin | | | 1678 | PER | 0.00 | 1 | -0.89 | 19 | -16.91 | |
| Acuna Alarcon, Claudia Micaela | | | 1515 | PER | 1.00 | 1 | 0.04 | 19 | 0.76 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1810 | PER | 1.00 | 1 | 0.22 | 19 | 4.18 | |
| Ramirez Espino, Alessandro | | | 1580 | PER | 1.00 | 1 | 0.06 | 19 | 1.14 | |
| * 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) |
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| XVIII CAMPEONATO SUDAMERICANO DE AJEDREZ SUB 20 ABSOLUTO 2023 | Antofagasta | CHI | 2023-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1997 | 2026 | 6.00 | 9 | 1.32 | 19 | 25.08 | |
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| Rios Pattanachang, Nicolas | | | 1626 * | CHI | 1.00 | 1 | 0.08 | 19 | 1.52 | |
| Cahuapaza Tarapaca, Leonardo | | | 1752 | PER | 1.00 | 1 | 0.17 | 19 | 3.23 | |
| Jaque Gutierrez, Matias | c | | 2205 | CHI | 0.00 | 1 | -0.27 | 19 | -5.13 | |
| Ramirez Camilla, Agustin | | | 1720 | CHI | 1.00 | 1 | 0.14 | 19 | 2.66 | |
| Perez Rojas, Jorge | | | 1951 | CHI | 1.00 | 1 | 0.40 | 19 | 7.60 | |
| Ballesteros Cardenas, Leonardo | c | | 2085 | CHI | 0.50 | 1 | 0.08 | 19 | 1.52 | |
| Amigo Quintana, Antu | f | | 2233 | CHI | 0.50 | 1 | 0.27 | 19 | 5.13 | |
| Marrujo Pardo, Mauricio Emmanuel | | | 2196 | CHI | 0.50 | 1 | 0.22 | 19 | 4.18 | |
| Castellanos Villela, Alejandro | c | | 2203 | CHI | 0.50 | 1 | 0.23 | 19 | 4.37 | |
| * 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) |
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| V Open IRT Circulo Peruano de Ajedrez sub 2400 | Lima | PER | 2023-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1629 | 2026 | 5.50 | 6 | 0.20 | 19 | 3.80 | |
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| Benavides Conza, Diego Angelo | | | 1697 | PER | 1.00 | 1 | 0.12 | 19 | 2.28 | |
| Garay Ramirez, Estefano Javier | | | 1553 | PER | 1.00 | 1 | 0.05 | 19 | 0.95 | |
| Caceres Sandoval, Eduardo | | | 1776 | PER | 0.50 | 1 | -0.31 | 19 | -5.89 | |
| Garcia Andrada, Heidy Nicole | | wf | 1830 | PER | 1.00 | 1 | 0.25 | 19 | 4.75 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1291 | PER | 1.00 | 1 | 0.01 | 19 | 0.19 | |
| Coaquira Gonzales, Oscar Adriano | | | 1626 * | PER | 1.00 | 1 | 0.08 | 19 | 1.52 | |
| * 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) |
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| VI Open IRT Circulo Peruano de Ajedrez sub 2400 | Lima | PER | 2023-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1552 | 2026 | 4.50 | 5 | -0.11 | 19 | -2.09 | |
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| Guevara Huamani, Jhady Julieth | | | 1626 * | PER | 1.00 | 1 | 0.08 | 19 | 1.52 | |
| Estrada Cantaro, Andre Fabio | | | 1347 | PER | 1.00 | 1 | 0.01 | 19 | 0.19 | |
| Gonzalo Garate, Luis Valentino | | | 1595 | PER | 0.50 | 1 | -0.43 | 19 | -8.17 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1810 | PER | 1.00 | 1 | 0.22 | 19 | 4.18 | |
| Ramirez Mori, Angel Farid | | | 1384 | PER | 1.00 | 1 | 0.01 | 19 | 0.19 | |
| * 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) |
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| Campeonato Nacional de Ajedrez Impar 2023 - Sub 17 Absoluto | Lima | PER | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1683 | 2026 | 7.50 | 9 | -0.36 | 19 | -6.84 | |
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| Venegas Fernandez, Gabriel | | | 1626 * | PER | 1.00 | 1 | 0.08 | 19 | 1.52 | |
| Zapata Romero, Italo German | | | 1585 | PER | 1.00 | 1 | 0.06 | 19 | 1.14 | |
| Sifuentes Alcantara, Jhony Sebas | | | 1654 | PER | 1.00 | 1 | 0.10 | 19 | 1.90 | |
| Blanco Ramirez, Jhosep Emanuel | | | 1659 | PER | 0.50 | 1 | -0.40 | 19 | -7.60 | |
| Quiroz Alva, Franco Rodrigo | | | 1897 | PER | 0.00 | 1 | -0.67 | 19 | -12.73 | |
| Janampa Javier, Brandon Daniel | | | 1639 | PER | 1.00 | 1 | 0.09 | 19 | 1.71 | |
| Salazar Flores, Yerick Alexander | | | 1682 | PER | 1.00 | 1 | 0.12 | 19 | 2.28 | |
| Choque Ordono, Mijail Yasser | | | 1704 | PER | 1.00 | 1 | 0.13 | 19 | 2.47 | |
| Villafuerte Mamani, Khalid Stepha | | | 1699 | PER | 1.00 | 1 | 0.13 | 19 | 2.47 | |
| * 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) |
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