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Individual Calculations November 2019 |
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| Alvarado Monge, Noelia Patricia Total change: 121.60 | |   |
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| Campeonato Nacional por Equipos Sub18 Juvenil 2019 | San Ramon y Naranjo | CRC | 2019-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1312 | 1061 | 3.00 | 3 | 2.37 | 40 | 94.80 | |
|  Rojas Esquivel, Luis Julian | | | 1140 | CRC | 1.00 | 1 | 0.61 | 40 | 24.40 | |  Lobo Meneses, Natalia | | | 1393 | CRC | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Calderon Brenes, Brandon | | | 1403 | CRC | 1.00 | 1 | 0.88 | 40 | 35.20 | |
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) | | | | VII Open Encuentro de Culturas 2019 | Santa Ana | CRC | 2019-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1354 | 1061 | 1.50 | 5 | 0.67 | 40 | 26.80 | |
| | Torrentes Arias, Greivin | | | 1461 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Hernandez Obando, Jason Ivan | | | 1443 | CRC | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Herrera Granados, Felipe | | | 1360 | CRC | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Lopez Bustos, David | | | 1274 | CRC | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Porras Chavarria, Pamela Maria | | | 1230 | CRC | 1.00 | 1 | 0.72 | 40 | 28.80 | | | * 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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