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| 2 Open IRT U1200 Circulo Peruano de Ajedrez | Lima | PER | 2023-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1069 | 1190 | 3.50 | 6 | -0.48 | 35 | -16.80 | |
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 Ramirez Mori, Jael Eduardo | | | 1096 | PER | 0.50 | 1 | -0.13 | 35 | -4.55 | |
 Carbajal Sotomayor, Cesar Stefano | | | 1007 | PER | 1.00 | 1 | 0.26 | 35 | 9.10 | |
| Montero Ricra, Kevin Johan | | | 1057 | PER | 0.00 | 1 | -0.68 | 35 | -23.80 | |
| Zegarra Castaneda, Oliver Mateo | | | 1107 | PER | 0.50 | 1 | -0.11 | 35 | -3.85 | |
| Guevara Huamani, Angello Mohises | | | 1050 | PER | 0.50 | 1 | -0.19 | 35 | -6.65 | |
| Dongo Ccorahua, Leonardo Bruno | | | 1097 | PER | 1.00 | 1 | 0.37 | 35 | 12.95 | |
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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| 3 Open IRT U1200 Circulo Peruano de Ajedrez | Lima | PER | 2023-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1103 | 1190 | 2.50 | 6 | -1.19 | 35 | -41.65 | |
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| Salazar Flores, Adiel Jesus | | | 1109 | PER | 0.50 | 1 | -0.11 | 35 | -3.85 | |
| Gutierrez Quispe, Benjamin Matias | | | 1114 | PER | 0.00 | 1 | -0.60 | 35 | -21.00 | |
| Pumayauli Evangelista, Piero Jair | | | 1013 | PER | 1.00 | 1 | 0.27 | 35 | 9.45 | |
| Anchelia Anchivilca, Gabriel Jesu | | | 1040 | PER | 0.50 | 1 | -0.20 | 35 | -7.00 | |
| Sardon, Aragon Alejandro Ulysses | | | 1181 | PER | 0.00 | 1 | -0.51 | 35 | -17.85 | |
| Garay Ramirez, Patrick Yosue | | | 1162 | PER | 0.50 | 1 | -0.04 | 35 | -1.40 | |
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 |
| 1315 | 1190 | 4.00 | 8 | 1.16 | 35 | 40.60 | |
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| Astoyauri De La Cruz, Fernando Is | | | 1573 | PER | 0.50 | 1 | 0.41 | 35 | 14.35 | |
| Marcelo Poma, Jaden Eduardo | | | 1232 | PER | 0.50 | 1 | 0.06 | 35 | 2.10 | |
| Choque Aparco, Esteban Abel | | | 1355 | PER | 0.00 | 1 | -0.28 | 35 | -9.80 | |
| Linares Pinedo, Rafho Luis | | | 1003 | PER | 1.00 | 1 | 0.26 | 35 | 9.10 | |
| Salas Gonzales, David Ademar | | | 1514 | PER | 0.00 | 1 | -0.13 | 35 | -4.55 | |
| Pinto Vera, Jesus Nabih | | | 1103 | PER | 0.50 | 1 | -0.12 | 35 | -4.20 | |
| Velasquez Cabrera, Cristian Mateo | | | 1301 | ECU | 1.00 | 1 | 0.65 | 35 | 22.75 | |
| Acho Yujra, Adhemar Logan | | | 1436 | BOL | 0.50 | 1 | 0.31 | 35 | 10.85 | |
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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