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| VIII Open IRT U-1600 Club Hermanos Rojas | Lima | PER | 2019-08-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1184 | 1068 | 1.00 | 4 | -0.45 | 40 | -18.00 | |
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 Bendezu Yupanqui, Albert Martin | | | 1084 | PER | 0.00 | 1 | -0.48 | 40 | -19.20 | |
 Reyes Zavaleta, Cristhian Yamil | | | 1289 | PER | 0.00 | 1 | -0.22 | 40 | -8.80 | |
| Coaquira Gonzales, Oscar Adriano | | | 1005 | PER | 1.00 | 1 | 0.41 | 40 | 16.40 | |
| Reyes Zavaleta, Diego Alexander | | | 1358 | PER | 0.00 | 1 | -0.16 | 40 | -6.40 | |
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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| I TORNEO IRT DE AJEDREZ "PEON AL PASO" | Lima | PER | 2019-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1444 | 1044 | 0.00 | 1 | -0.08 | 40 | -3.20 | |
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| Contreras, Fiorella | | | 1444 * | PER | 0.00 | 1 | -0.08 | 40 | -3.20 | |
| * 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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| X Festival Panamericano Escolar de las Americas -Colombia 2019- U-9 Absoluto | Medellin | COL | 2019-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1151 | 1044 | 1.00 | 5 | -0.79 | 40 | -31.60 | |
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| Nunez Villavicencio, Mathias Seba | | | 1222 | ECU | 0.00 | 1 | -0.27 | 40 | -10.80 | |
| Abreu Balza, Alan Jeremias | | | 1213 | VEN | 0.00 | 1 | -0.28 | 40 | -11.20 | |
| Ajahuana Medina, Darien Giambert | | | 1184 | PER | 0.00 | 1 | -0.31 | 40 | -12.40 | |
| Tascon, Diego Alejandro | | | 1065 | COL | 0.50 | 1 | 0.03 | 40 | 1.20 | |
| Lopez Escobar, Jose David | | | 1073 | GUA | 0.50 | 1 | 0.04 | 40 | 1.60 | |
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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| IX Open IRT U-1600 Club Hermanos Rojas | Lima | PER | 2019-11-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1193 | 1044 | 1.00 | 3 | -0.01 | 40 | -0.40 | |
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| Espichan Serna, Luis Ricardo | | | 1036 | PER | 0.00 | 1 | -0.51 | 40 | -20.40 | |
| Ramirez Mori, Angel Farid | | | 1099 | PER | 1.00 | 1 | 0.58 | 40 | 23.20 | |
| Robles Mamani, Fabio Francisco | | | 1444 * | PER | 0.00 | 1 | -0.08 | 40 | -3.20 | |
| * 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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