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Individual Calculations August 2023 |
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| Perez Rojas, Jorge Total change: 47.60 | |   |
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| XVIII CAMPEONATO SUDAMERICANO DE AJEDREZ SUB 20 ABSOLUTO 2023 | Antofagasta | CHI | 2023-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1950 | 1951 | 5.50 | 9 | 1.19 | 40 | 47.60 | |
|  Perez Choque, Andre Josue | | | 1551 * | CHI | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Piccoli, Lucas Fonseca | | | 2221 | BRA | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Castro Salgado, Pablo | | | 2242 | CHI | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Perez Rojas, Felipe | | | 1514 | CHI | 1.00 | 1 | 0.06 | 40 | 2.40 | | | Reyes Zavaleta, Fabian Ricardo | | | 2026 | PER | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Neira Zamudio, Rafael | | | 1713 | CHI | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Garzon Camelo, Andres Santiago | | | 2073 | COL | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Titichoca Daza, Daniel | c | | 2169 | BOL | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Cabiativa, Juan Esteban | | | 2042 | COL | 0.50 | 1 | 0.12 | 40 | 4.80 | | | * 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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