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Individual Calculations January 2011 |
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| Ossa, Juan Sebastian Total change: 23.25 | |   |
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| IRT Open Ciudad de Cartago Alcaldia y Empresas Publicas | Cartago | COL | 2010-10-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2158 | 1938 | 1.50 | 3 | 0.71 | 15 | 10.65 | |
|  Clavijo, Jorge Mario | m | | 2332 | COL | 0.50 | 1 | 0.42 | 15 | 6.30 | |  Ossa, Orlando | | | 2257 | COL | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Sanchez, Andres Gilberto | | | 1884 | COL | 1.00 | 1 | 0.42 | 15 | 6.30 | |
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) | | | | Festival Centroamericano y del Caribe de la Juventud U-16 Boys | Medellin | COL | 2010-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2110 | 1938 | 2.00 | 4 | 0.84 | 15 | 12.60 | |
| | Rendon, Daniel | | | 2110 | COL | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Jaramillo Ochoa, Mateo | | | 1955 | COL | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Bassan, Remo | | | 2286 | VEN | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Blandon Villa, Diego F | | | 2087 | COL | 1.00 | 1 | 0.70 | 15 | 10.50 | |
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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