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| I Open IRT Club Regatas sub 2400 | Lima | PER | 2023-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1596 | 1439 | 1.50 | 3 | 0.45 | 24 | 10.80 | |
|
 Garcia Toledo, Pedro | | | 1911 | PER | 0.50 | 1 | 0.45 | 24 | 10.80 | |
 Salazar Flores, Yerick Alexander | | | 1682 | PER | 0.00 | 1 | -0.20 | 24 | -4.80 | |
| Sanchez Rojas, Alejandro Sam | | | 1194 | PER | 1.00 | 1 | 0.20 | 24 | 4.80 | |
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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| XIV Festival Internacional de Ajedrez Claretiano 2023 Sub - 16 | Lima | PER | 2023-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1312 | 1439 | 3.00 | 6 | -0.98 | 24 | -23.52 | |
|
| Quispe Villagaray, Maria Belen | | | 1157 | PER | 0.50 | 1 | -0.34 | 24 | -8.16 | |
| Ynga Huaman, Luz Marina | | | 1291 | PER | 0.50 | 1 | -0.20 | 24 | -4.80 | |
| Flower Nivin, Cesar Antonio Joaqu | | | 1182 | PER | 1.00 | 1 | 0.18 | 24 | 4.32 | |
| Huarcaya Jimenez, Gabriela | | | 1227 | PER | 1.00 | 1 | 0.23 | 24 | 5.52 | |
| Alfaro Zambrano, Luis Fabricio | | | 1720 | PER | 0.00 | 1 | -0.16 | 24 | -3.84 | |
| Chavez Bautista, Lennin Alfredo | | | 1296 | PER | 0.00 | 1 | -0.69 | 24 | -16.56 | |
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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| XXXIII Pan-American Youth Chess Festival - Under 14 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1516 | 1470 | 2.50 | 7 | -0.90 | 24 | -21.60 | |
|
| Ho, Cooper | | | 2039 | USA | 0.00 | 1 | -0.02 | 24 | -0.48 | |
| Shankar, Aashritha | | | 1179 | USA | 0.50 | 1 | -0.35 | 24 | -8.40 | |
| Ayala Aranibar, Adrian Alexander | | | 1252 | PER | 0.00 | 1 | -0.78 | 24 | -18.72 | |
| Amrud Rolon, Chane | | | 1295 | PUR | 1.00 | 1 | 0.27 | 24 | 6.48 | |
| Santos Sagastume, Paolo Andres | | | 1835 | GUA | 0.00 | 1 | -0.10 | 24 | -2.40 | |
| Torres Torres, George Maycol | | | 1285 | PER | 1.00 | 1 | 0.26 | 24 | 6.24 | |
| Polanco Fernandez, Reynie | | | 1730 | DOM | 0.00 | 1 | -0.18 | 24 | -4.32 | |
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 Regional de Ajedrez Metropolitano Impar Sub 17 Absoluto | Lima | PER | 2023-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1635 | 1470 | 4.00 | 6 | 2.02 | 24 | 48.48 | |
|
| Zegarra Lopez, Limber Anthony | | | 1400 | PER | 1.00 | 1 | 0.40 | 24 | 9.60 | |
| Villafuerte Mamani, Khalid Stepha | | | 1637 | PER | 1.00 | 1 | 0.72 | 24 | 17.28 | |
| Lapa Cunias, Marco Antonio | | | 1498 | PER | 0.50 | 1 | 0.04 | 24 | 0.96 | |
| Zapata Romero, Italo German | | | 1544 | PER | 1.00 | 1 | 0.60 | 24 | 14.40 | |
| Reyes Zavaleta, Fabian Ricardo | | | 2038 | PER | 0.00 | 1 | -0.02 | 24 | -0.48 | |
| Salazar Flores, Yerick Alexander | | | 1692 | PER | 0.50 | 1 | 0.28 | 24 | 6.72 | |
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 Regional de Ajedrez Metropolitano Impar Sub 15 Absoluto | Lima | PER | 2023-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1358 | 1470 | 4.50 | 7 | 0.09 | 24 | 2.16 | |
|
| Cari Mendez, Leonardo | | | 1070 * | PER | 1.00 | 1 | 0.08 | 24 | 1.92 | |
| Turpo Ocupa, Rodrigo Farid | | | 1133 | PER | 1.00 | 1 | 0.12 | 24 | 2.88 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1770 | PER | 0.00 | 1 | -0.15 | 24 | -3.60 | |
| Mamani Garrote, Yahel Andre | | | 1183 | PER | 1.00 | 1 | 0.16 | 24 | 3.84 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1305 | PER | 0.50 | 1 | -0.22 | 24 | -5.28 | |
| Castaneda Huamani, Frank Eder | | | 1269 | PER | 1.00 | 1 | 0.24 | 24 | 5.76 | |
| Rojas Linares, Nicolas Gabriel | | | 1775 | PER | 0.00 | 1 | -0.14 | 24 | -3.36 | |
| * 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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