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Individual Calculations December 2018 |
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| Lopez Herrera, Piero Total change: 15.60 | |   |
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| Copa Ciudad de Arequipa IRT Pre Continental Sur | Arequipa | PER | 2018-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1663 | 1874 | 4.00 | 5 | 0.39 | 40 | 15.60 | |
|  Jarufe, Llerrena Gabriel Andre | | | 1474 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Cutipa, Elfer | | | 2141 | PER | 0.00 | 1 | -0.18 | 40 | -7.20 | |  Huichi Ancasi, Sergio Andre | | | 1474 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Manzano Quispe, Jose Julian | | | 1474 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Morales Cespedes, James | | | 1750 | PER | 1.00 | 1 | 0.33 | 40 | 13.20 | | | * 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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