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Individual Calculations January 2019 |
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| Ajahuana Medina, Darien Giambert Total change: -1.20 | |   |
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| Festival Sudamericano de la Juventud 2018, Sub 8, Absoluta | Lima | PER | 2018-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1211 | 1033 | 0.50 | 2 | -0.03 | 40 | -1.20 | |
|  Ccana Minauro, Wernher Sebastian | | | 1233 | PER | 0.50 | 1 | 0.26 | 40 | 10.40 | |  Altamirano Carmona, Percy Baltaza | | | 1188 | PER | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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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