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| 7 Open IRT U2400 Circulo Peruano de Ajedrez | Lima | PER | 2023-10-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1553 | 1510 | 2.50 | 5 | -0.01 | 35 | -0.35 | |
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 Suarez Chavez, Alejandro | | | 1180 | PER | 1.00 | 1 | 0.12 | 35 | 4.20 | |
 Salas Gonzales, David Ademar | | | 1362 | PER | 1.00 | 1 | 0.30 | 35 | 10.50 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1341 | PER | 0.50 | 1 | -0.22 | 35 | -7.70 | |
| Reyes Zavaleta, Fabian Ricardo | | | 2125 | PER | 0.00 | 1 | -0.02 | 35 | -0.70 | |
| Bendezu Yupanqui, Albert Martin | | | 1758 | PER | 0.00 | 1 | -0.19 | 35 | -6.65 | |
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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| 2 Open IRT U2400 Club Regatas Lima | Lima | PER | 2023-10-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1456 | 1510 | 3.50 | 6 | 0.29 | 35 | 10.15 | |
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| Reyes Zavaleta, Cristhian Yamil | | | 1857 | PER | 0.00 | 1 | -0.11 | 35 | -3.85 | |
| Ramirez Mori, Jael Eduardo | | | 1110 * | PER | 1.00 | 1 | 0.08 | 35 | 2.80 | |
| Bendezu Yupanqui, Albert Martin | | | 1758 | PER | 0.00 | 1 | -0.19 | 35 | -6.65 | |
| Rivera Berrocal, Ricardo Jose | | | 1017 | PER | 1.00 | 1 | 0.04 | 35 | 1.40 | |
| Rojas Salas, Rihanna Irina | | | 1276 | PER | 1.00 | 1 | 0.21 | 35 | 7.35 | |
| Salazar Flores, Yerick Alexander | | | 1716 | PER | 0.50 | 1 | 0.26 | 35 | 9.10 | |
| * 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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| XII Campeonato Panamericano Escolar de Ajedrez - Sub 13 Absoluto | Lima | PER | 2023-10-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1291 | 1510 | 7.00 | 9 | 0.20 | 35 | 7.00 | |
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| Gallegos Ambulay, Salvador Yoel | | | 1109 | PER | 0.50 | 1 | -0.42 | 35 | -14.70 | |
| Paucarmayta Quirita, Diego Jared | | | 1130 | PER | 1.00 | 1 | 0.09 | 35 | 3.15 | |
| Cahuaya Alpes, William Rafael | | | 1201 | PER | 1.00 | 1 | 0.14 | 35 | 4.90 | |
| Jimenez Espinola, Herles Hazael | | | 1318 | PER | 0.50 | 1 | -0.25 | 35 | -8.75 | |
| Delgado Alarcon, Julian Rafael | | | 1193 | ECU | 1.00 | 1 | 0.13 | 35 | 4.55 | |
| Solorzano Roncal, Ezzio Jose | | | 1384 | PER | 0.00 | 1 | -0.67 | 35 | -23.45 | |
| Cardenas Huachaca, Alessandro Jai | | | 1315 | PER | 1.00 | 1 | 0.25 | 35 | 8.75 | |
| Sanchez Sanchez, Leonardo Daniel | | | 1411 | PER | 1.00 | 1 | 0.36 | 35 | 12.60 | |
| Janampa Javier, Jhonatan David | | | 1560 | PER | 1.00 | 1 | 0.57 | 35 | 19.95 | |
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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