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Individual Calculations April 2009 |
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| Zamora Mejias, Alonso Total change: 0.00 | |   |
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| Costa Rican Junior Championship 2009 | Cartago | CRC | 2009-01-20 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2140 | 0 | 0.00 | 3 | 0.00 | 1440 | | 0.00 | |
|  Ruiz Blais, Sebastian | | | 2231 | CRC | 0.00 | 1 | 0.00 | | 0.00 | | | Cabrera, Marco Antonio | | | 2109 | CRC | 0.00 | 1 | 0.00 | | 0.00 | |  Urbina Quiros, Edwin | | | 2080 | CRC | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Costa Rican National Championship Phase 1.1 | San Jose | CRC | 2009-01-31 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2020 | 0 | 3.50 | 8 | 0.00 | 1977 | | 0.00 | |
| | Jimenez, Alvarado Alonso | | | 1960 | CRC | 0.00 | 1 | 0.00 | | 0.00 | | | Brenes, Juan Carlos | | | 1997 | CRC | 1.00 | 1 | 0.00 | | 0.00 | | | Castro Madrigal, Randall | | | 2135 | CRC | 0.00 | 1 | 0.00 | | 0.00 | | | Rodriguez Carmona, James | | | 2011 | CRC | 1.00 | 1 | 0.00 | | 0.00 | | | Barrios Zamora, Carlos | | | 2046 | CRC | 0.00 | 1 | 0.00 | | 0.00 | | | Gomez Huertas, Stanley | | | 1991 | CRC | 0.00 | 1 | 0.00 | | 0.00 | | | Duran Vega, Andres | | | 1975 | CRC | 1.00 | 1 | 0.00 | | 0.00 | | | Centeno Mora, Erick | | | 2043 | CRC | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | |
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