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Individual Calculations January 2024 |
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| Zegarra Castaneda, Oliver Mateo Total change: 36.86 | |   |
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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 |
| 1103 | 1107 | 0.50 | 3 | -1.02 | 38 | -38.76 | |
|  Guevara Huamani, Angello Mohises | | | 1050 | PER | 0.00 | 1 | -0.58 | 38 | -22.04 | |  Sotelo Reyna, Alberto David | | | 1190 | PER | 0.50 | 1 | 0.11 | 38 | 4.18 | | | Casimiro Villavicencio, Moises Ed | | | 1070 | PER | 0.00 | 1 | -0.55 | 38 | -20.90 | |
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) | | | | XIX Festival Sul-Americano da Juventude 2023 STD - U12 Absoluto | Florianopolis SC | BRA | 2023-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1262 | 1107 | 3.00 | 8 | 0.46 | 38 | 17.48 | |
| | Soares, Rafael Tuma | | | 1490 | BRA | 0.00 | 1 | -0.09 | 38 | -3.42 | | | Loos Fernandez, Tiago | | | 1312 | CHI | 0.50 | 1 | 0.26 | 38 | 9.88 | | | Paredes Minaya, Crhistian Jesus | | | 1374 | PER | 0.00 | 1 | -0.18 | 38 | -6.84 | | | Munoz Venegas, Martin | | | 1265 | CHI | 0.00 | 1 | -0.29 | 38 | -11.02 | | | Ccohua Quispichu, Joshep Victor | | | 1175 | PER | 0.00 | 1 | -0.41 | 38 | -15.58 | | | Feest Barrientos, Valentin Sebast | | | 1023 | CHI | 1.00 | 1 | 0.38 | 38 | 14.44 | | | Arrue Rengifo, Amos Aaron | | | 1075 | PER | 1.00 | 1 | 0.46 | 38 | 17.48 | | | Cavalcanti, Joao Lehmann | | | 1381 | BRA | 0.50 | 1 | 0.33 | 38 | 12.54 | |
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 |
| 1224 | 1107 | 4.00 | 7 | 1.53 | 38 | 58.14 | |
| | Sanchez Negreiros, Alejandro Gust | | | 1018 | PER | 1.00 | 1 | 0.38 | 38 | 14.44 | | | Nunez Pariona, Thiago Williams | | | 1214 | PER | 0.00 | 1 | -0.35 | 38 | -13.30 | | | Salazar Flores, Adiel Jesus | | | 1109 | PER | 1.00 | 1 | 0.50 | 38 | 19.00 | | | Arroyo Zarate, Andre Richard Rive | | | 1246 | PER | 1.00 | 1 | 0.69 | 38 | 26.22 | | | Angeles Castillo, Bastian Missael | | | 1234 | PER | 0.00 | 1 | -0.33 | 38 | -12.54 | | | Meneses Morales, Marcos Beltran | | | 1360 | PER | 1.00 | 1 | 0.81 | 38 | 30.78 | | | Llatas Parihuaman, Jose Maria | | | 1384 | PER | 0.00 | 1 | -0.17 | 38 | -6.46 | |
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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