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Individual Calculations April 2009 |
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| Rodriguez Carmona, James Total change: 55.50 | |   |
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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 |
| 1969 | 2011 | 5.00 | 5 | 2.22 | 25 | 55.50 | |
|  Trejos, Shirley | | | 1986 | CRC | 1.00 | 1 | 0.47 | 25 | 11.75 | | | Duran Vega, Andres | | | 1975 | CRC | 1.00 | 1 | 0.45 | 25 | 11.25 | |  Urena, Omar | | | 1951 | CRC | 1.00 | 1 | 0.42 | 25 | 10.50 | | | Alvarez Hernandez, David | | | 1962 | CRC | 1.00 | 1 | 0.43 | 25 | 10.75 | | | Fernandez, Mario | | | 1973 | CRC | 1.00 | 1 | 0.45 | 25 | 11.25 | |
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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