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Individual Calculations November 2017 |
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| Shih Gould, Annie Total change: 20.40 | |   |
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| Campeonato Nacional Juvenil Sub18 por Equipos 2017 | Cartago | CRC | 2017-09-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1495 | 1591 | 1.50 | 3 | -0.33 | 40 | -13.20 | |
|  Coto Bonilla, Darian | c | | 1691 | CRC | 0.50 | 1 | 0.14 | 40 | 5.60 | |  Mata Tencio, Randall | | | 1275 | CRC | 0.50 | 1 | -0.37 | 40 | -14.80 | | | Ramirez Marchena, Carlos Andres | | | 1518 | CRC | 0.50 | 1 | -0.10 | 40 | -4.00 | |
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) | | | | V Open Encuentro de Culturas Santa Ana 2017 | Santa Ana | CRC | 2017-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1731 | 1585 | 2.50 | 5 | 0.84 | 40 | 33.60 | |
| | Vilpoux, Jeremie | | | 1985 * | FRA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Soto Alfaro, Braulio | | | 1407 | CRC | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Zeledon Perez, Edgar | | | 1790 | CRC | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Guzman Hidalgo, Nicolas | | | 1655 | CRC | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Rivera Gonzalez, Jose Alexis | | | 1817 | CRC | 0.00 | 1 | -0.21 | 40 | -8.40 | | | * 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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