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Individual Calculations April 2009 |
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| Barrios Zamora, Carlos Total change: -14.25 | |   |
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| Costa Rican National Championship Phase 1.1 | San Jose | CRC | 2009-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2046 | 2.00 | 5 | -0.57 | 25 | -14.25 | |
|  Alvarez Hernandez, David | | | 1962 | CRC | 0.50 | 1 | -0.12 | 25 | -3.00 | |  Carvajal Gorgona, Jonathan | | | 2175 | CRC | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Urbina Quiros, Edwin | | | 2080 | CRC | 0.50 | 1 | 0.05 | 25 | 1.25 | | | Montenegro, Esteban | | | 2013 | CRC | 0.50 | 1 | -0.05 | 25 | -1.25 | | | Jimenez, Alvarado Alonso | | | 1960 | CRC | 0.50 | 1 | -0.12 | 25 | -3.00 | |
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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