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Individual Calculations January 2009 |
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| Gonzalez, Bernal Total change: 8.30 | |   |
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| III Internacional Bolsa de Valores | Santa Ana | CRC | 2008-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2208 | 2423 | 4.50 | 6 | -0.04 | 10 | -0.40 | |
|  Urbina Quiros, Edwin | | | 2073 | CRC | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Carvajal Gorgona, Jonathan | | | 2191 | CRC | 0.50 | 1 | -0.29 | 10 | -2.90 | | | Castillo, Rommel | | | 2144 | NCA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Valdes, Leonardo | m | | 2408 | CRC | 0.50 | 1 | -0.02 | 10 | -0.20 | | | Murillo, Alexis | m | | 2319 | CRC | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Alfaro, Carlos | | | 2113 | CRC | 1.00 | 1 | 0.14 | 10 | 1.40 | |
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) | | | | Olympiad Dresden Open | Dresden | GER | 2008-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2445 | 2432 | 5.50 | 9 | 1.21 | 10 | 12.10 | |
| | Berg, Emanuel | g | | 2623 | SWE | 1.00 | 1 | 0.75 | 10 | 7.50 | | | Juarez Flores, Carlos A | m | | 2358 | GUA | 0.50 | 1 | -0.10 | 10 | -1.00 | | | Balram, Napit | | | 2082 | NEP | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Irwanto, Sadikin | m | | 2441 | INA | 0.50 | 1 | 0.01 | 10 | 0.10 | | | Miton, Kamil | g | | 2605 | POL | 0.50 | 1 | 0.23 | 10 | 2.30 | | | Olsen, Heini | f | | 2376 | FAI | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Amin, Bassem | g | | 2560 | EGY | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Pazos Gambarrotti, Plinio | m | | 2327 | ECU | 1.00 | 1 | 0.36 | 10 | 3.60 | | | Navara, David | g | | 2633 | CZE | 0.00 | 1 | -0.24 | 10 | -2.40 | |
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) | | | | Metropolitano 2008 | San Jose | CRC | 2008-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2142 | 2432 | 5.50 | 7 | -0.34 | 10 | -3.40 | |
| | Ulloa, Oscar | | | 2082 | CRC | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Alvarez Hernandez, David | | | 2082 | CRC | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Castillo, Rommel | | | 2119 | NCA | 0.50 | 1 | -0.36 | 10 | -3.60 | | | Vives, David | | | 2097 | CRC | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Angulo Cubero, Oscar | | | 2082 | CRC | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Ruiz Blais, Sebastian | | | 2207 | CRC | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Murillo, Alexis | m | | 2323 | CRC | 0.50 | 1 | -0.15 | 10 | -1.50 | |
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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