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Individual Calculations July 2010 |
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| Gamboa Alvarado, Leticia Total change: -28.50 | |   |
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| II Copa Consultecnica | San Jose | CRC | 2010-02-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1710 | 0.00 | 3 | -0.71 | 25 | -17.75 | |
|  Duran Vega, Andres | | | 1985 | CRC | 0.00 | 1 | -0.17 | 25 | -4.25 | |  Montenegro, Esteban | | | 2037 | CRC | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Bonilla Sequeira, Pablo | | | 1775 | CRC | 0.00 | 1 | -0.41 | 25 | -10.25 | |
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) | | | | Memorial Alekhine | San Jose | CRC | 2010-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1934 | 1710 | 1.00 | 4 | 0.06 | 25 | 1.50 | |
| | Solis, Efren | | | 2108 | CRC | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Jimenez Esquivel, Greivin | | | 1979 | CRC | 0.50 | 1 | 0.33 | 25 | 8.25 | | | Sotela, Felipe | | | 1846 | CRC | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Vargas, Julio | | | 1802 | CRC | 0.50 | 1 | 0.13 | 25 | 3.25 | |
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) | | | | Open CR Memorial Capablanca | San Jose | CRC | 2010-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 1710 | 0.00 | 2 | -0.49 | 25 | -12.25 | |
| | Perez Perez, Osniel | f | | 2110 * | CUB | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Bonilla Sequeira, Pablo | | | 1775 | CRC | 0.00 | 1 | -0.41 | 25 | -10.25 | | | * 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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