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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 |
| 1156 | 1021 | 1.50 | 5 | -0.10 | 38 | -3.80 | |
|
 Mandujano Torres, Joseph Jairo Se | | | 1237 | PER | 0.00 | 1 | -0.22 | 38 | -8.36 | |
| Bendezu Yupanqui, Albert Martin | | | 1164 | PER | 0.00 | 1 | -0.31 | 38 | -11.78 | |
 Reyes Zavaleta, Sergio Gabriel | | | 1169 | PER | 0.50 | 1 | 0.20 | 38 | 7.60 | |
| Ramirez Flores, Lino Alfredo | | | 1148 | PER | 0.00 | 1 | -0.33 | 38 | -12.54 | |
| Pillaca Chumbe, Santiago Moises | | | 1063 | PER | 1.00 | 1 | 0.56 | 38 | 21.28 | |
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 |
| 1323 | 1058 | 2.00 | 5 | 0.94 | 38 | 35.72 | |
|
| Apolin Meza, Tito | | | 1458 * | PER | 0.50 | 1 | 0.42 | 38 | 15.96 | |
| Mantilla Montero, Jafet Alexander | | | 1246 | PER | 0.00 | 1 | -0.26 | 38 | -9.88 | |
| Rojas Salas, Rihanna Irina | | | 1022 | PER | 0.50 | 1 | -0.05 | 38 | -1.90 | |
| Saravia, German | | | 1433 | PER | 1.00 | 1 | 0.91 | 38 | 34.58 | |
| Reyes Zavaleta, Diego Alexander | | | 1458 * | PER | 0.00 | 1 | -0.08 | 38 | -3.04 | |
| * 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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| XIV Open IRT U-1600 Club Hermanos Rojas. | Lima | PER | 2020-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1106 | 1058 | 2.50 | 5 | 0.32 | 38 | 12.16 | |
|
| Bendezu Yupanqui, Albert Martin | | | 1217 | PER | 0.50 | 1 | 0.21 | 38 | 7.98 | |
| Rojas Salas, Rihanna Irina | | | 1022 | PER | 1.00 | 1 | 0.45 | 38 | 17.10 | |
| Vilca Contreras, Dante Ivan | | | 1052 | PER | 1.00 | 1 | 0.49 | 38 | 18.62 | |
| Linares Matos, Mauricio Alonso | | | 1174 | PER | 0.00 | 1 | -0.34 | 38 | -12.92 | |
| Guzman Vera, Allison Nicole | | | 1067 | PER | 0.00 | 1 | -0.49 | 38 | -18.62 | |
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 14 Absoluto | Lima | PER | 2020-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1273 | 1058 | 1.00 | 3 | 0.26 | 38 | 9.88 | |
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| Abarca Benites, Isaac Alejandro | | | 1264 | PER | 1.00 | 1 | 0.76 | 38 | 28.88 | |
| Cruz Silva, Terry Gabriel Yamir | | | 1425 | PER | 0.00 | 1 | -0.10 | 38 | -3.80 | |
| Chavez Bautista, Lennin Alfredo | | | 1129 | PER | 0.00 | 1 | -0.40 | 38 | -15.20 | |
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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