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Individual Calculations January 2009 |
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| Guerrero Forero, Ricardo Total change: 84.35 | |   |
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| IRT Nacional Inter-Empresas 2008 | Bogota | COL | 2008-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2108 | 2135 | 1.00 | 5 | -1.68 | 25 | -42.00 | |
|  Casas, Jose Fernando | | | 1889 | COL | 0.00 | 1 | -0.81 | 25 | -20.25 | |  Rodriguez, Wilmer Alberto | | | 2181 | COL | 0.00 | 1 | -0.44 | 25 | -11.00 | | | Salcedo, Edison | | | 2116 | COL | 0.00 | 1 | -0.53 | 25 | -13.25 | | | Soste, Victor | | | 2034 | COL | 1.00 | 1 | 0.36 | 25 | 9.00 | | | Zuluaga, Cesar | f | | 2320 | COL | 0.00 | 1 | -0.26 | 25 | -6.50 | |
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) | | | | IRT Open Internacional U Central | Bogota | COL | 2008-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2272 | 2135 | 6.00 | 9 | 3.12 | 25 | 78.00 | |
| | Rivera, Alberto | m | | 2363 | CUB | 0.50 | 1 | 0.29 | 25 | 7.25 | | | Betancur, David | | | 2224 | COL | 1.00 | 1 | 0.62 | 25 | 15.50 | | | Ramirez, Carlos | f | | 2284 | COL | 0.50 | 1 | 0.20 | 25 | 5.00 | | | Nunez, Gustavo Eduardo | f | | 2186 | COL | 1.00 | 1 | 0.57 | 25 | 14.25 | | | Acosta, Alejandro | m | | 2344 | COL | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Rodriguez, Wilmer Alberto | | | 2181 | COL | 1.00 | 1 | 0.56 | 25 | 14.00 | | | Diaz, Jaime Walter | | | 2246 | COL | 1.00 | 1 | 0.65 | 25 | 16.25 | | | Zuluaga, Cesar | f | | 2320 | COL | 1.00 | 1 | 0.74 | 25 | 18.50 | | | Espinosa, Julio Manuel | f | | 2303 | COL | 0.00 | 1 | -0.28 | 25 | -7.00 | |
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) | | | | Torneo IRT OPEN DE LAS AMERICAS | Medellin | COL | 2008-11-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2162 | 2135 | 4.50 | 6 | 1.70 | 25 | 42.50 | |
| | Gonzalez, Sonia | | | 2021 | COL | 1.00 | 1 | 0.34 | 25 | 8.50 | | | Gallego, Andres Felipe | | | 2365 | COL | 1.00 | 1 | 0.79 | 25 | 19.75 | | | Osorio, Cristhian Camilo | | | 2179 | COL | 1.00 | 1 | 0.56 | 25 | 14.00 | | | Escobar Medina, Andres F | | | 2059 | COL | 0.00 | 1 | -0.60 | 25 | -15.00 | | | Castaneda, Jhon David | | | 2161 | COL | 0.50 | 1 | 0.04 | 25 | 1.00 | | | Nunez, Gustavo Eduardo | f | | 2186 | COL | 1.00 | 1 | 0.57 | 25 | 14.25 | |
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) | | | NOTE: K factor changed | | IRT Juegos Nacionales ABS 2008 | San Andres | COL | 2008-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2254 | 2135 | 2.50 | 6 | 0.39 | 15 | 5.85 | |
| | Jurado Barreiro, Frank | | | 2084 | COL | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Barrientos, Sergio E | m | | 2450 | COL | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Zuluaga, Cesar | f | | 2320 | COL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Munoz, Julian Andres | | | 2157 | COL | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Diaz Cordoba, Fredy | | | 2266 | COL | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Diaz, Jaime Walter | | | 2246 | COL | 0.00 | 1 | -0.35 | 15 | -5.25 | |
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) | | |
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