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Individual Calculations October 2008 |
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| Ruiz Blais, Sebastian Total change: 12.15 | |   |
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| Campeonato Subzonal Masculino 2008 | Guatemala, Guatemala | GUA | 2008-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2072 | 2133 | 1.00 | 4 | -1.32 | 15 | -19.80 | |
|  Cu Hor, Winston | | | 2074 | GUA | 0.00 | 1 | -0.58 | 15 | -8.70 | |  Villatoro Perez, Rudy Daniel | | | 1924 | GUA | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Castillo, Rommel | | | 2131 | NCA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Alfaro, William | | | 2158 | NCA | 0.00 | 1 | -0.47 | 15 | -7.05 | |
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 |
| 2238 | 2195 | 5.00 | 7 | 1.76 | 15 | 26.40 | |
| | Mikhalevski, Victor | g | | 2545 | ISR | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Arroyo, Luis | | | 2018 | CRC | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Munoz, Carolina | | | 2032 | CRC | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Heredia Serrano, Carla | | | 2030 | ECU | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Perez, Luis Manuel | m | | 2495 | CUB | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Simplina, Pancho | | | 2143 | NCA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Fernandez, Daniel | m | | 2401 | USA | 1.00 | 1 | 0.76 | 15 | 11.40 | |
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 Nacional de Costa Rica 2008 Fase 2 | San José | CRC | 2008-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2180 | 2195 | 5.00 | 9 | 0.37 | 15 | 5.55 | |
| | Vives, David | | | 2061 | CRC | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Hernandez Basante, Francisco | m | | 2254 | CRC | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Cabrera, Marco Antonio | | | 2065 | CRC | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Vargas Serano, Pablo | | | 1845 | CRC | 0.00 | 1 | -0.89 | 15 | -13.35 | | | Murillo, Alexis | m | | 2319 | CRC | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Machado Ramirez, Allan | | | 2068 | CRC | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Valdes, Leonardo | m | | 2408 | CRC | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Gonzalez, Bernal | m | | 2423 | CRC | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Alfaro Rojas, Alfonso | | | 2181 | CRC | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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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