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Individual Calculations April 2009 |
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| Murillo Ortiz, Gustavo Total change: -1.25 | |   |
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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 |
| 1983 | 1988 | 3.50 | 7 | -0.05 | 25 | -1.25 | |
|  Castillo, Rommel | | | 2122 | NCA | 0.00 | 1 | -0.32 | 25 | -8.00 | |  Mendez, Oscar | | | 1856 | CRC | 1.00 | 1 | 0.32 | 25 | 8.00 | | | Centeno Mora, Erick | | | 2043 | CRC | 0.50 | 1 | 0.08 | 25 | 2.00 | | | Alfaro Guillen, Jose Raul | | | 1892 | CRC | 0.00 | 1 | -0.63 | 25 | -15.75 | | | Vargas Serano, Pablo | | | 1983 | CRC | 1.00 | 1 | 0.49 | 25 | 12.25 | | | Munoz, Carolina | | wm | 2026 | CRC | 0.50 | 1 | 0.05 | 25 | 1.25 | | | Alvarez Hernandez, David | | | 1962 | CRC | 0.50 | 1 | -0.04 | 25 | -1.00 | |
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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