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Individual Calculations July 2018 |
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| Alfaro Guillen, Jose Raul Total change: -30.40 | |   |
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| Campeonato Nacional Clasico de Ajedrez por Equipos FCA 2018 | San Jose | CRC | 2018-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2121 | 2006 | 0.50 | 3 | -0.56 | 20 | -11.20 | |
|  Ruiz Saiz, Agustin | | | 2200 | ESP | 0.00 | 1 | -0.25 | 20 | -5.00 | |  Trigueros Fallas, Gustavo Adolfo | f | | 2185 | CRC | 0.50 | 1 | 0.23 | 20 | 4.60 | | | Tapia Quiros, Gustavo | c | | 1978 | CRC | 0.00 | 1 | -0.54 | 20 | -10.80 | |
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) | | | | I Cerrado de Alajuela 2018 | Alajuela | CRC | 2018-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1797 | 2006 | 2.00 | 4 | -0.96 | 20 | -19.20 | |
| | Herrera Marin, Carmen | | | 1606 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Toro Soto, Anthony Roy | | | 2027 | CRC | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Rivera Gonzalez, Jose Alexis | | | 1809 | CRC | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Acevedo Mendez, Jennifer | | wf | 1744 | CRC | 0.00 | 1 | -0.82 | 20 | -16.40 | | | * 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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