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Individual Calculations October 2008 |
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| Alfaro, Carlos Total change: -14.25 | |   |
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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 |
| 2069 | 2114 | 3.50 | 7 | -0.43 | 15 | -6.45 | |
|  Vives, David | | | 2070 | CRC | 0.50 | 1 | -0.06 | 15 | -0.90 | |  Vega, Edwin | | | 2106 | CRC | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Solano, Agustin | | | 2015 | CRC | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Solis, Efren | | | 2120 | CRC | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Barrios Zamora, Carlos | | | 2061 | CRC | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Ugalde, Ronald | | | 2142 | CRC | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Aguilar, Luis | | | 1966 | CRC | 0.50 | 1 | -0.20 | 15 | -3.00 | |
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) | | | | Campeonato Subzonal Masculino 2008 | Guatemala, Guatemala | GUA | 2008-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2193 | 2114 | 2.50 | 5 | 0.51 | 15 | 7.65 | |
| | Fonseca, Jose Luis | | | 2199 | NCA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Juarez Flores, Carlos A. | m | | 2373 | GUA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Garcia, Sergio | | | 2204 | GUA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Argueta, Carlos | | | 1951 | ESA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Guillen Ramirez, Jose Antonio | f | | 2240 | HON | 1.00 | 1 | 0.67 | 15 | 10.05 | |
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 |
| 2101 | 2113 | 0.00 | 2 | -1.03 | 15 | -15.45 | |
| | Murillo, Alexis | m | | 2319 | CRC | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Lopez, Carlos Manuel | | | 1882 | ESA | 0.00 | 1 | -0.79 | 15 | -11.85 | |
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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