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| XII Open IRT U-1600 Club Hermanos Rojas | Lima | PER | 2020-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1213 | 1169 | 4.00 | 7 | 0.79 | 40 | 31.60 | |
|
 Gallegos Uscamayta, Wilson | | | 1256 | PER | 1.00 | 1 | 0.62 | 40 | 24.80 | |
 Lazaro Cuevas, Ronald Anthony | | | 1569 * | PER | 0.00 | 1 | -0.08 | 40 | -3.20 | |
| Ramirez Flores, Lino Alfredo | | | 1148 | PER | 0.00 | 1 | -0.53 | 40 | -21.20 | |
| Francisco Suyo, David Elias | | | 1021 | PER | 0.50 | 1 | -0.20 | 40 | -8.00 | |
| Maravi Ceron, Ayme | | | 1106 | PER | 1.00 | 1 | 0.41 | 40 | 16.40 | |
| Mandujano Torres, Joseph Jairo Se | | | 1237 | PER | 0.50 | 1 | 0.09 | 40 | 3.60 | |
| Ortiz Menacho, Sebastian Alonso | | | 1154 | PER | 1.00 | 1 | 0.48 | 40 | 19.20 | |
| * 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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| XIII Open IRT U-1600 Club Hermanos Rojas. | Lima | PER | 2020-02-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1081 | 1125 | 3.00 | 4 | 0.76 | 40 | 30.40 | |
|
| Garay Ramirez, Patrick Yosue | | | 1004 | PER | 1.00 | 1 | 0.34 | 40 | 13.60 | |
| Vilca Contreras, Dante Ivan | | | 1052 | PER | 0.50 | 1 | -0.10 | 40 | -4.00 | |
| Rojas Salas, Rihanna Irina | | | 1022 | PER | 1.00 | 1 | 0.36 | 40 | 14.40 | |
| Mantilla Montero, Jafet Alexander | | | 1246 | PER | 0.50 | 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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| XIV Open IRT U-1600 Club Hermanos Rojas. | Lima | PER | 2020-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1122 | 1125 | 0.50 | 2 | -0.50 | 40 | -20.00 | |
|
| Mollo Figueroa, Nicole | | | 1202 | BOL | 0.50 | 1 | 0.11 | 40 | 4.40 | |
| Garay Ramirez, Estefano Javier | | | 1042 | PER | 0.00 | 1 | -0.61 | 40 | -24.40 | |
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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| Campeonato Metropolitano Juvenil 2020 - Sub 10 Absoluto | Lima | PER | 2020-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1300 | 1125 | 1.50 | 3 | 0.64 | 40 | 25.60 | |
|
| Estrada Cantaro, Andre Fabio | | | 1379 | PER | 0.50 | 1 | 0.31 | 40 | 12.40 | |
| Delgado Romero, Julio Cesar Stefa | | | 1124 | PER | 1.00 | 1 | 0.50 | 40 | 20.00 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1397 | PER | 0.00 | 1 | -0.17 | 40 | -6.80 | |
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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