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Individual Calculations April 2019 |
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| Molina Alfaro, Ahias Total change: 24.40 | |   |
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| Campeonato Nacional Master y Senior 2019 | San Jose | CRC | 2019-02-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1807 | 1703 | 2.50 | 5 | 0.61 | 40 | 24.40 | |
|  Araya Umana, Carlos | c | | 1903 | CRC | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Morales Zumbado, Raul | | | 1303 * | CRC | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Van Der Laat Ulloa, Jorge | | | 1682 | CRC | 1.00 | 1 | 0.47 | 40 | 18.80 | | | Zumbado Gutierrez, Marco Antonio | | | 2043 | CRC | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Cersosimo Bolanos, Francisco | | | 2103 * | CRC | 0.50 | 1 | 0.42 | 40 | 16.80 | | | * 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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