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Individual Calculations January 2009 |
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| Casas Cobos, Jose Fernando Total change: 27.75 | |   |
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| IRT Nacional Inter-Empresas 2008 | Bogota | COL | 2008-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2095 | 1889 | 2.00 | 4 | 1.06 | 25 | 26.50 | |
|  Guerrero Forero, Ricardo Alon | | | 2135 | COL | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Salcedo, Edison | | | 2116 | COL | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Pardo, Javier Andres | | | 2046 | COL | 1.00 | 1 | 0.71 | 25 | 17.75 | | | Camargo, Santiago | | | 2082 | COL | 0.00 | 1 | -0.25 | 25 | -6.25 | |
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) | | | | IRT Juegos Nacionales ABS 2008 | San Andres | COL | 2008-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2192 | 1889 | 0.50 | 3 | 0.05 | 25 | 1.25 | |
| | Tovio, Israel | | | 2239 | COL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Diaz, Ricardo | | | 2239 | COL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Santiago, Angel Adolfo | | | 2099 | COL | 0.50 | 1 | 0.27 | 25 | 6.75 | |
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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