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Individual Calculations October 2018 |
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| Solano Saltachin, Ruth Total change: 2.40 | |   |
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| Campeonato Nacional Infantil Sub 13 Femenino 2018 | Cartago | CRC | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1186 | 1172 | 1.50 | 3 | 0.06 | 40 | 2.40 | |
|  Rojas Mora, Maria Salvadora | | | 1077 | CRC | 1.00 | 1 | 0.37 | 40 | 14.80 | |  Villalta Leiton, Nicole Tamara | | | 1238 | CRC | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Rodriguez Retana, Sofia | | | 1242 | CRC | 0.00 | 1 | -0.40 | 40 | -16.00 | |
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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