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Individual Calculations January 2009 |
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| Ossa, Juan Sebastian Total change: 16.65 | |   |
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| Nal Colegial A MASC | Armenia | COL | 2008-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2012 | 1865 | 0.50 | 2 | -0.11 | 15 | -1.65 | |
|  Valencia, Cristian Johan | | | 2034 | COL | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Ospina, Carl Erik | | | 1989 | COL | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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 Open Internacional U Central | Bogota | COL | 2008-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 1865 | 2.50 | 7 | 1.22 | 15 | 18.30 | |
|  Espinosa, Julio Manuel | f | | 2215 | COL | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Alvarez, Amaury | | | 2148 | COL | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Betancur, David | | | 2215 | COL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Reyes, Jheremy | | | 2108 | COL | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Cardenas, Alejandro | | | 2089 | COL | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Pulido, Diana Marcela | | | 2052 | COL | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Pena Duarte, Fabian Dario | | | 2086 | COL | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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) | | |
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