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Individual Calculations October 2015 |
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| Porras Chavarria, Steve Total change: 20.00 | |   |
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| Memorial Joaquin Gutierrez G64 | San Jose | CRC | 2015-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1962 | 1774 | 2.50 | 7 | 0.50 | 40 | 20.00 | |
|  Alfaro Rojas, Alfonso Jose | f | | 2174 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Chinchilla Miranda, Eugenio | f | | 2174 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Solano Cruz, Agustin | | | 1924 | CRC | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Acevedo Mendez, Jennifer | | wf | 1758 | CRC | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Ramirez Arroyo, Joan Emmanuel | | | 1982 | CRC | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Araya Umana, Carlos | | | 2006 | CRC | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Rivera Gonzalez, Jose Alexis | | | 1718 | CRC | 0.50 | 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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