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Individual Calculations October 2015 |
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| Alfaro Rojas, Alfonso Jose Total change: 11.00 | |   |
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| Memorial Joaquin Gutierrez G64 | San Jose | CRC | 2015-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2284 | 6.50 | 9 | 0.55 | 20 | 11.00 | |
|  Araya Umana, Carlos | | | 2006 | CRC | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Porras Chavarria, Steve | | | 1884 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Castillo Morales, Thais | | | 1884 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Solano Cuya, Bryan | | | 2171 | CRC | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Vilpoux, Jeremie | | | 2200 | FRA | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Bermudez Vives, Sergio | f | | 2130 | CRC | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Gonzalez Acosta, Bernal | g | | 2502 | CRC | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Arias Santana, Mauricio | m | | 2308 | CRC | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Chinchilla Miranda, Eugenio | f | | 2202 | CRC | 0.50 | 1 | -0.11 | 20 | -2.20 | | | * 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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