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Individual Calculations April 2009 |
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| Cabrera, Marco Antonio Total change: 24.45 | |   |
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| Costa Rican Junior Championship 2009 | Cartago | CRC | 2009-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2042 | 2109 | 4.50 | 7 | 0.37 | 15 | 5.55 | |
|  Duran Vega, Andres | | | 1975 | CRC | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Montenegro, Pedro | | | 2022 | CRC | 0.50 | 1 | -0.12 | 15 | -1.80 | |  Duran Vega, Sergio | | | 1983 | CRC | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Montenegro, Esteban | | | 2013 | CRC | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Munoz, Jose Pablo | | | 2078 | CRC | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Ruiz Blais, Sebastian | | | 2231 | CRC | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Angulo Cubero, Oscar | | | 1992 | CRC | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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 | K | K*chg | Game |
| 2040 | 2109 | 6.00 | 8 | 1.26 | 15 | 18.90 | |
| | Needham, Bryan | | | 2005 | CRC | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Gomez Huertas, Stanley | | | 1991 | CRC | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Jimenez, Alvarado Alonso | | | 1960 | CRC | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Carvajal Gorgona, Jonathan | | | 2175 | CRC | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Machado Ramirez, Allan | | | 1996 | CRC | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Solis, Efren | | | 2128 | CRC | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Duran Vega, Sergio | | | 1983 | CRC | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Urbina Quiros, Edwin | | | 2080 | CRC | 0.50 | 1 | -0.04 | 15 | -0.60 | |
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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