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Individual Calculations September 2023 |
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| Quispe Farfan, Edgar Matteo Total change: 25.20 | |   |
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| IRT SUB 1600 - COPA 33 ANIVERSARIO DISTRITO DE J. HUNTER - AREQUIPA | Arequipa | PER | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1283 | 1037 | 1.00 | 3 | 0.37 | 40 | 14.80 | |
|  Calcina Arroyo, Richard Antonio A | | | 1415 | PER | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Salas Alvarez, Gustavo Marcelo | | | 1199 | PER | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Blanco Huallpa, Joshuas Kalen | | | 1234 | PER | 1.00 | 1 | 0.75 | 40 | 30.00 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 10 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1591 | 1037 | 0.50 | 4 | 0.26 | 40 | 10.40 | |
| | Wang, Ted | | | 1913 | USA | 0.00 | 1 | 0.00 | 40 | 0.00 | | | Fang, Zelin | | | 1431 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Angulo Perez, Sebastian | | | 1686 | CRC | 0.00 | 1 | -0.01 | 40 | -0.40 | | | Lopez Fuentes, Andre Nicolas | | | 1333 | MEX | 0.50 | 1 | 0.35 | 40 | 14.00 | |
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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