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Individual Calculations April 2009 |
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| Rodriguez, David Total change: 12.50 | |   |
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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 |
| 2075 | 1968 | 3.00 | 7 | 0.50 | 25 | 12.50 | |
|  Carvajal Gorgona, Jonathan | | | 2175 | CRC | 0.00 | 1 | -0.23 | 25 | -5.75 | |  Gomez Huertas, Stanley | | | 1991 | CRC | 0.50 | 1 | 0.03 | 25 | 0.75 | | | Centeno Mora, Erick | | | 2043 | CRC | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Needham, Bryan | | | 2005 | CRC | 1.00 | 1 | 0.55 | 25 | 13.75 | | | Solano Lopaz, Royner | | | 2083 | CRC | 1.00 | 1 | 0.66 | 25 | 16.50 | | | Urbina Quiros, Edwin | | | 2080 | CRC | 0.00 | 1 | -0.35 | 25 | -8.75 | | | Granados, Carlos | | | 2150 | CRC | 0.50 | 1 | 0.24 | 25 | 6.00 | |
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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