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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 |
| 1440 | 1566 | 4.50 | 7 | -0.06 | 21 | -1.26 | |
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 Mayo, Zevallos Salvador Andres | | | 1166 * | PER | 1.00 | 1 | 0.08 | 21 | 1.68 | |
 Fernandez Monteza, Fabian Arturo | | | 1369 | PER | 0.50 | 1 | -0.25 | 21 | -5.25 | |
| Ccana Minauro, Wernher Sebastian | | | 1476 | PER | 0.50 | 1 | -0.12 | 21 | -2.52 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1291 | PER | 1.00 | 1 | 0.17 | 21 | 3.57 | |
| De La Cruz De La Roca, Alan Rafae | | | 1335 | PER | 0.50 | 1 | -0.29 | 21 | -6.09 | |
| Vilca Contreras, Dante Ivan | | | 1550 | PER | 1.00 | 1 | 0.48 | 21 | 10.08 | |
| Jimenez Salas, Maria Teresa | | wf | 1894 | PER | 0.00 | 1 | -0.13 | 21 | -2.73 | |
| * 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 |
| 1659 | 1566 | 3.00 | 6 | 0.72 | 21 | 15.12 | |
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| Ccerhuayo Escobedo, Mels Leopold | | | 1902 | PER | 0.00 | 1 | -0.12 | 21 | -2.52 | |
| Benavides Conza, Diego Angelo | | | 1697 | PER | 1.00 | 1 | 0.68 | 21 | 14.28 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1810 | PER | 0.50 | 1 | 0.30 | 21 | 6.30 | |
| Caja Cruz, Gabriel | | | 1856 | PER | 0.00 | 1 | -0.16 | 21 | -3.36 | |
| Ayala Aranibar, Adrian Alexander | | | 1166 * | PER | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Quevedo Perales, Aaron Wilfredo | | | 1522 | PER | 0.50 | 1 | -0.06 | 21 | -1.26 | |
| * 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 |
| 1233 | 1566 | 3.00 | 5 | -1.32 | 21 | -27.72 | |
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| Mollo Figueroa, Nicole | | | 1411 | BOL | 0.00 | 1 | -0.71 | 21 | -14.91 | |
| Espichan Serna, Magaly Del Rosari | | | 1265 | PER | 1.00 | 1 | 0.15 | 21 | 3.15 | |
| Guevara Huamani, Jhady Julieth | | | 1183 | PER | 1.00 | 1 | 0.09 | 21 | 1.89 | |
| Ayala Aranibar, Adrian Alexander | | | 1166 * | PER | 0.00 | 1 | -0.92 | 21 | -19.32 | |
| Valenzuela Reinoso, Safrys | | | 1138 | PER | 1.00 | 1 | 0.07 | 21 | 1.47 | |
| * 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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| IRT Clasico Festival de Ajedrez AOPIP Armagedon | Lima | PER | 2023-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1434 | 1566 | 4.00 | 6 | 0.13 | 21 | 2.73 | |
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| Sotelo Reyna, Alberto David | | | 1211 | PER | 1.00 | 1 | 0.11 | 21 | 2.31 | |
| Ojeda Aguilar, Blas Aaron | | | 1192 | PER | 1.00 | 1 | 0.10 | 21 | 2.10 | |
| Paz Neyra, Eduardo Gabriel | | | 1365 | PER | 1.00 | 1 | 0.24 | 21 | 5.04 | |
| Mollo Figueroa, Nicole | | | 1411 | BOL | 1.00 | 1 | 0.29 | 21 | 6.09 | |
| Benavides Conza, Diego Angelo | | | 1697 | PER | 0.00 | 1 | -0.32 | 21 | -6.72 | |
| Saenz Ayllon, Ivan David | | | 1727 | PER | 0.00 | 1 | -0.29 | 21 | -6.09 | |
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 15 Femenino | Lima | PER | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1388 | 1566 | 6.00 | 9 | -0.47 | 21 | -9.87 | |
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| Farro Olivares, Dulce Maria | | | 1166 * | PER | 1.00 | 1 | 0.08 | 21 | 1.68 | |
| Jacome Cueva, Mariah Fernanda | | | 1312 | PER | 1.00 | 1 | 0.19 | 21 | 3.99 | |
| Sotelo Leon, Ester Victoria | | | 1400 | PER | 0.50 | 1 | -0.22 | 21 | -4.62 | |
| Tacas Cardenas, Pamela Natividad | | | 1377 | PER | 1.00 | 1 | 0.25 | 21 | 5.25 | |
| Sanchez Cruz, Mireya Jassly | | | 1481 | PER | 0.50 | 1 | -0.12 | 21 | -2.52 | |
| Norabuena Ticona, Gabriela Paola | | | 1417 | PER | 0.50 | 1 | -0.20 | 21 | -4.20 | |
| Ynga Huaman, Luz Marina | | | 1291 | PER | 0.50 | 1 | -0.33 | 21 | -6.93 | |
| Arenas Lavado, Luciana Andrea | | | 1531 | PER | 0.50 | 1 | -0.05 | 21 | -1.05 | |
| Acuna Alarcon, Claudia Micaela | | | 1515 | PER | 0.50 | 1 | -0.07 | 21 | -1.47 | |
| * 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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