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Individual Calculations September 2023 |
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| Gomez Bolivar, Angelo Valentino Total change: 53.20 | |   |
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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 |
| 1287 | 1010 | 1.50 | 4 | 0.80 | 40 | 32.00 | |
|  Salas Gonzales, David Ademar | | | 1410 * | PER | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Jimenez Salas, Fabiana | | | 1260 | PER | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Espichan Serna, Magaly Del Rosari | | | 1265 | PER | 1.00 | 1 | 0.81 | 40 | 32.40 | |  Bernal Alva, Rodrigo | | | 1213 | PER | 0.50 | 1 | 0.26 | 40 | 10.40 | | | * 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) | | | | XIV Festival Internacional de Ajedrez Claretiano 2023 Sub - 12 | Lima | PER | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1167 | 1010 | 2.00 | 5 | 0.49 | 40 | 19.60 | |
| | Casqui Lopez, Pamela Grace | | | 1252 | PER | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Navarro Costa, Alejandro Mauricio | | | 1231 | PER | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Chira Diaz , Antonella | | | 1121 | PER | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Guia Fernandez, Akemi Naomi Melan | | | 1216 | PER | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Rodriguez Ibanez, Alejandro | | | 1013 | PER | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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) | | | | Campeonato Regional de Ajedrez Metropolitano Impar Sub 13 Absoluto | Lima | PER | 2023-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1304 | 1010 | 0.50 | 3 | 0.04 | 40 | 1.60 | |
| | Paredes Minaya, Crhistian Jesus | | | 1387 | PER | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Villaverde Salas, Gonzalo Matias | | | 1247 | PER | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Poma Bernal, Cristian Andres | | | 1278 | PER | 0.50 | 1 | 0.33 | 40 | 13.20 | |
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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