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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 |
| 1463 | 1443 | 3.50 | 6 | 0.34 | 36 | 12.24 | |
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 Reyes Zavaleta, Fabian Ricardo | | | 2026 | PER | 0.00 | 1 | -0.02 | 36 | -0.72 | |
 Espiritu, Laureano Pier Davide | | | 1103 | PER | 1.00 | 1 | 0.12 | 36 | 4.32 | |
| Carbajal Sotomayor, Cesar Stefano | | | 1119 | PER | 1.00 | 1 | 0.13 | 36 | 4.68 | |
| Jimenez Salas, Maria Teresa | | wf | 1894 | PER | 0.00 | 1 | -0.06 | 36 | -2.16 | |
| Aranda Pucuhuanca, Alessandra Mic | | | 1252 | PER | 1.00 | 1 | 0.25 | 36 | 9.00 | |
| Ccana Minauro, Reiben Andre | | | 1383 | PER | 0.50 | 1 | -0.08 | 36 | -2.88 | |
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 |
| 1530 | 1443 | 2.00 | 4 | 0.48 | 36 | 17.28 | |
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| Bendezu Yupanqui, Albert Martin | | | 1678 | PER | 0.00 | 1 | -0.21 | 36 | -7.56 | |
| Del Carpio Gomez, Alejandro | | | 1065 | PER | 1.00 | 1 | 0.09 | 36 | 3.24 | |
| Condori, Nestor | | | 1678 | PER | 1.00 | 1 | 0.79 | 36 | 28.44 | |
| Benavides Conza, Diego Angelo | | | 1697 | PER | 0.00 | 1 | -0.19 | 36 | -6.84 | |
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 |
| 1260 | 1443 | 6.50 | 9 | 0.01 | 36 | 0.36 | |
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| Velasquez Pastor, Andrea Guadalup | | | 1070 | PER | 1.00 | 1 | 0.10 | 36 | 3.60 | |
| Vilca Cruz, Marsia Gianella Kathe | | | 1284 | PER | 0.50 | 1 | -0.21 | 36 | -7.56 | |
| Aranda Pucuhuanca, Alessandra Mic | | | 1252 | PER | 1.00 | 1 | 0.25 | 36 | 9.00 | |
| Sotelo Leon, Ester Victoria | | | 1400 | PER | 0.00 | 1 | -0.56 | 36 | -20.16 | |
| Ynga Huaman, Luz Marina | | | 1291 | PER | 0.50 | 1 | -0.20 | 36 | -7.20 | |
| Neyra Alba, Daniela Sofia | | | 1290 | PER | 1.00 | 1 | 0.30 | 36 | 10.80 | |
| Larios Calixto, Paris Dayana | | | 1125 | PER | 1.00 | 1 | 0.13 | 36 | 4.68 | |
| Farro Olivares, Dulce Maria | | | 1143 | PER | 1.00 | 1 | 0.15 | 36 | 5.40 | |
| Sanchez Cruz, Mireya Jassly | | | 1481 | PER | 0.50 | 1 | 0.05 | 36 | 1.80 | |
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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