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Individual Calculations October 2008 |
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| Carvajal, Jonathan Total change: -50.85 | |   |
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| Campeonato Nacional de Costa Rica 2008 Fase 1 | Moravia | CRC | 2008-05-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 2173 | 1.50 | 5 | -1.89 | 15 | -28.35 | |
|  Campos, Roberto | | | 2040 | CRC | 0.50 | 1 | -0.18 | 15 | -2.70 | |  Cabrera, Marco Antonio | | | 2047 | CRC | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Machado Ramirez, Allan | | | 2068 | CRC | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Brenes, Juan Carlos | | | 1968 | CRC | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Vives, David | | | 2070 | CRC | 0.00 | 1 | -0.64 | 15 | -9.60 | |
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) | | | | IV Torneo Internacional de Ajedrez Alajuela 2008 | Alajuela | CRC | 2008-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2093 | 2191 | 1.00 | 4 | -1.50 | 15 | -22.50 | |
| | Ramirez, Alejandro | g | | 2531 | CRC | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Da Bosco, Carla | | wf | 1971 | CRC | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Heredia Serrano, Carla | | | 2030 | ECU | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Martinez, Luis Gerardo | | | 1841 | ESA | 0.00 | 1 | -0.89 | 15 | -13.35 | |
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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