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Individual Calculations January 2018 |
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| Zuniga Cerdas, Fernando Total change: 8.80 | |   |
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| Abierto Metropolitano 2017 | San Jose | CRC | 2017-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1856 | 1580 | 1.00 | 4 | 0.22 | 40 | 8.80 | |
|  Chinchilla Miranda, Eugenio | f | | 1980 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Buitrago Mosquera, Antonio | | | 1836 | CRC | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Lopez Acevedo, William Alonso | | | 1628 | CRC | 1.00 | 1 | 0.57 | 40 | 22.80 | | | Fernandez Sibaja, Felipe J | c | | 1980 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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