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| 9 Open IRT U1800 Club Hermanos Rojas | Lima | PER | 2022-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1360 | 1289 | 2.00 | 6 | -0.52 | 24 | -12.48 | |
|
 Quevedo Perales, Aaron Wilfredo | | | 1492 | PER | 0.00 | 1 | -0.24 | 24 | -5.76 | |
 Julcarima Quispe, Edder Rolando | | | 1131 | PER | 0.50 | 1 | -0.21 | 24 | -5.04 | |
| Bendezu Yupanqui, Albert Martin | | | 1495 | PER | 0.00 | 1 | -0.24 | 24 | -5.76 | |
| Rojas Salas, Rihanna Irina | | | 1245 | PER | 1.00 | 1 | 0.44 | 24 | 10.56 | |
| Maravi Ceron, Ayme | | | 1197 | PER | 0.00 | 1 | -0.63 | 24 | -15.12 | |
| Baca Olazaval, Ximena | | | 1599 | PER | 0.50 | 1 | 0.36 | 24 | 8.64 | |
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 Metropolitano Impar Absoluto Sub 13 2022 | Lima | PER | 2022-09-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1175 | 1289 | 2.50 | 4 | -0.07 | 24 | -1.68 | |
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| Campos Aquino, Benjhamyn Joshua | | | 1131 | PER | 1.00 | 1 | 0.29 | 24 | 6.96 | |
| Ortiz Mallma, Fabian Ivan | | | 1110 | PER | 0.00 | 1 | -0.73 | 24 | -17.52 | |
| Puma Puchoc, Alejandro Apolinar | | | 1047 | PER | 1.00 | 1 | 0.20 | 24 | 4.80 | |
| Ccana Minauro, Wernher Sebastian | | | 1413 | PER | 0.50 | 1 | 0.17 | 24 | 4.08 | |
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 2022 Sub 13 Absoluto | Lima | PER | 2022-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1153 | 1289 | 2.00 | 6 | -2.04 | 24 | -48.96 | |
|
| Puma Puchoc, Alejandro Apolinar | | | 1047 | PER | 0.50 | 1 | -0.30 | 24 | -7.20 | |
| Zambrano Mara, Percy Rodrigo | | | 1325 | PER | 0.00 | 1 | -0.45 | 24 | -10.80 | |
| Vasquez Florez, Yoshua Marcelo | | | 1166 | PER | 0.00 | 1 | -0.67 | 24 | -16.08 | |
| Anccana Poma, Samuel Adrian | | | 1033 | PER | 0.50 | 1 | -0.31 | 24 | -7.44 | |
| Valdivia Rojas, Hugo Ismael | | | 1134 | PER | 1.00 | 1 | 0.29 | 24 | 6.96 | |
| Solorzano Roncal, Ezzio Jose | | | 1215 | PER | 0.00 | 1 | -0.60 | 24 | -14.40 | |
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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| 10 Open IRT U1800 Club Hermanos Rojas | Lima | PER | 2022-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1446 | 1289 | 3.00 | 6 | 1.12 | 24 | 26.88 | |
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| Carmona Carrillo, Carlos Rafael A | | | 1701 | ESP | 1.00 | 1 | 0.93 | 24 | 22.32 | |
| Quevedo Perales, Aaron Wilfredo | | | 1492 | PER | 0.00 | 1 | -0.24 | 24 | -5.76 | |
| Mollo Figueroa, Nicole | | | 1419 | BOL | 0.50 | 1 | 0.18 | 24 | 4.32 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1192 | PER | 0.00 | 1 | -0.63 | 24 | -15.12 | |
| Vilca Contreras, Dante Ivan | | | 1374 | PER | 1.00 | 1 | 0.62 | 24 | 14.88 | |
| Bendezu Yupanqui, Albert Martin | | | 1495 | PER | 0.50 | 1 | 0.26 | 24 | 6.24 | |
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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| 1 Open IRT U1800 Circulo Peruano de Ajedrez | Lima | PER | 2022-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1313 | 1289 | 1.00 | 5 | -1.34 | 24 | -32.16 | |
|
| Ramirez Espino, Alessandro | | | 1544 | PER | 0.00 | 1 | -0.19 | 24 | -4.56 | |
| Jimenez Salas, Fabiana | | | 1050 | PER | 1.00 | 1 | 0.20 | 24 | 4.80 | |
| Mollo Figueroa, Nicole | | | 1419 | BOL | 0.00 | 1 | -0.32 | 24 | -7.68 | |
| Reyes Zavaleta, Sergio Gabriel | | | 1192 | PER | 0.00 | 1 | -0.63 | 24 | -15.12 | |
| Astoyauri De La Cruz, Fernando Is | | | 1358 | PER | 0.00 | 1 | -0.40 | 24 | -9.60 | |
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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| 11 Open IRT U1800 Club Hermanos Rojas | Lima | PER | 2022-09-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1341 | 1289 | 0.00 | 2 | -0.88 | 24 | -21.12 | |
|
| Bendezu Yupanqui, Albert Martin | | | 1495 | PER | 0.00 | 1 | -0.24 | 24 | -5.76 | |
| Ccana Minauro, Reiben Andre | | | 1187 | PER | 0.00 | 1 | -0.64 | 24 | -15.36 | |
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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