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| II IRT Clasico - Sub 2400 Jose Idrogo Hidalgo "El Arbitro de Trujillo" | Trujillo | PER | 2023-09-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1772 | 1349 | 1.00 | 4 | 0.68 | 33 | 22.44 | |
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 Quiroz Alva, Franco Rodrigo | | | 1921 | PER | 0.00 | 1 | -0.02 | 33 | -0.66 | |
| Villanueva Arroyo, Segundo | | | 1678 | PER | 1.00 | 1 | 0.88 | 33 | 29.04 | |
 Rodriguez Rubio, Alex Steven | | | 1794 | PER | 0.00 | 1 | -0.06 | 33 | -1.98 | |
| Sanchez Negreiros, Jose Alberto | | | 1693 | PER | 0.00 | 1 | -0.12 | 33 | -3.96 | |
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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| 7 Open IRT U2400 Circulo Peruano de Ajedrez | Lima | PER | 2023-10-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1480 | 1341 | 3.00 | 6 | 0.83 | 33 | 27.39 | |
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| Reyes Zavaleta, Cristhian Yamil | | | 1857 | PER | 0.00 | 1 | -0.04 | 33 | -1.32 | |
| Garay Ramirez, Patrick Yosue | | | 1097 | PER | 1.00 | 1 | 0.20 | 33 | 6.60 | |
| Ramirez Mori, Angel Farid | | | 1572 | PER | 1.00 | 1 | 0.79 | 33 | 26.07 | |
| Ccana Minauro, Wernher Sebastian | | | 1510 | PER | 0.50 | 1 | 0.22 | 33 | 7.26 | |
| Garay Ramirez, Estefano Javier | | | 1665 | PER | 0.00 | 1 | -0.13 | 33 | -4.29 | |
| Suarez Chavez, Alejandro | | | 1180 | PER | 0.50 | 1 | -0.21 | 33 | -6.93 | |
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 |
| 1670 | 1341 | 0.00 | 3 | -0.45 | 33 | -14.85 | |
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| Herrada, Blanco Maria Fernanda | | | 1595 | PER | 0.00 | 1 | -0.19 | 33 | -6.27 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1857 | PER | 0.00 | 1 | -0.04 | 33 | -1.32 | |
| Zevallos Cordova, Enrique Ruben O | | | 1558 | PER | 0.00 | 1 | -0.22 | 33 | -7.26 | |
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 |
| 1115 | 1341 | 3.50 | 8 | -2.74 | 33 | -90.42 | |
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| Renteria Padilla, Jorge Roberto | | | 1009 | PER | 1.00 | 1 | 0.12 | 33 | 3.96 | |
| Merca Alvarado, Gabriel Adolfo | | | 1085 | PER | 0.50 | 1 | -0.31 | 33 | -10.23 | |
| Valdivia Rojas, Hugo Ismael | | | 1169 | PER | 0.00 | 1 | -0.73 | 33 | -24.09 | |
| Cisneros Vargas, Gabriel Jesus | | | 1141 | PER | 0.00 | 1 | -0.76 | 33 | -25.08 | |
| Anchelia Anchivilca, Gabriel Jesu | | | 1017 | PER | 1.00 | 1 | 0.13 | 33 | 4.29 | |
| Chile Vela, David Leonardo | | | 1178 | PER | 0.00 | 1 | -0.72 | 33 | -23.76 | |
| Paucarmayta Quirita, Diego Jared | | | 1130 | PER | 1.00 | 1 | 0.23 | 33 | 7.59 | |
| Heredia Barrios, Sheldon Biuler | | | 1193 | PER | 0.00 | 1 | -0.70 | 33 | -23.10 | |
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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