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Individual Calculations January 2011 |
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| Perez Arroyave, Damian Total change: -2.55 | |   |
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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 |
| 2149 | 1908 | 1.00 | 4 | 0.13 | 15 | 1.95 | |
|  Zabala, Fidel | | | 2092 | COL | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Beltran, Carlos Armando | | | 2194 | COL | 0.00 | 1 | -0.16 | 15 | -2.40 | |  Castro, Oscar H | m | | 2308 * | COL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Ospina Loaiza, Jhonny | | | 2002 | COL | 0.00 | 1 | -0.37 | 15 | -5.55 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Torneo Nacional IRT Abierto de la Raza Menor 2100 Elo | Medellin | COL | 2010-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2055 | 1908 | 0.00 | 1 | -0.30 | 15 | -4.50 | |
| | Kostov, Alex | | | 2055 | COL | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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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