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Individual Calculations January 2024 |
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| Carbajal Sotomayor, Cesar Stefano Total change: 21.20 | |   |
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| 2 Open IRT U1200 Circulo Peruano de Ajedrez | Lima | PER | 2023-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1190 | 1007 | 0.00 | 1 | -0.26 | 40 | -10.40 | |
|  Sotelo Reyna, Alberto David | | | 1190 | PER | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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) | | | | 3 Open IRT U1200 Circulo Peruano de Ajedrez | Lima | PER | 2023-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1127 | 1007 | 2.50 | 4 | 1.15 | 40 | 46.00 | |
| | Garay Ramirez, Patrick Yosue | | | 1162 | PER | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Gutierrez Quispe, Benjamin Matias | | | 1114 | PER | 1.00 | 1 | 0.65 | 40 | 26.00 | |  Sardon, Aragon Alejandro Ulysses | | | 1181 | PER | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Loayza Rivera, Bryan James | | | 1050 | PER | 0.50 | 1 | 0.06 | 40 | 2.40 | |
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) | | | | IV Campeonato Sudamericano Escolar de Ajedrez 2023 - Sub 11 Absoluto | Lima | PER | 2023-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1278 | 1007 | 0.00 | 2 | -0.36 | 40 | -14.40 | |
| | Meneses Morales, Marcos Beltran | | | 1358 | PER | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Ydrogo Agreda, Gustavo Alonso | | | 1197 | PER | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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) | | |
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