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Individual Calculations January 2009 |
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| Rojas Barrero, Andres H Total change: -6.75 | |   |
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| IRT Nacional Inter-Empresas 2008 | Bogota | COL | 2008-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2071 | 2253 | 5.00 | 6 | 0.71 | 15 | 10.65 | |
|  Cardozo, Carlos Eduardo | | | 1903 | COL | 1.00 | 1 | 0.11 | 15 | 1.65 | |  Duque, Juan Camilo | | | 2005 | COL | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Ossa, Orlando | | | 2314 | COL | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Mendez, Wilford | | | 1903 | COL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Garavito, Miguel Angel | | | 2157 | COL | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Becerra, Juan David | | | 2142 | COL | 1.00 | 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) | | | | IRT Open Internacional U Central | Bogota | COL | 2008-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2253 | 4.00 | 8 | 0.23 | 15 | 3.45 | |
| | Ramirez, Heimy Polgar | | | 2027 | COL | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Tapia, Daniel | f | | 2324 | COL | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Melgosa, Marcio | | | 2292 | COL | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Castro, Oscar H | m | | 2395 | COL | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Acosta, Alejandro | m | | 2344 | COL | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Narvaez, , Faber Alberto | | | 2123 | COL | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Gallego, Andres Felipe | | | 2365 | COL | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Zuluaga, Cesar | f | | 2320 | COL | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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 Sub-Zonal ABS 2.3.4 | San Andres | COL | 2008-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2246 | 2253 | 4.50 | 8 | 0.45 | 15 | 6.75 | |
| | Echavarria, Johann | f | | 2376 | COL | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Prieto, Ernesto | | | 2181 | COL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Remicio Duque, John H | | | 2216 | COL | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Pena, Alfredo | f | | 2309 | COL | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Gallego, Andres Felipe | | | 2365 | COL | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Zuluaga, Cesar | f | | 2320 | COL | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Manotas, Franklin | | | 2029 | COL | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Sanchez, Victor Hugo | | | 2170 | COL | 1.00 | 1 | 0.39 | 15 | 5.85 | |
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 |
| 2104 | 2253 | 3.00 | 7 | -1.84 | 15 | -27.60 | |
| | Sierra, Edwin Andres | | | 2105 | COL | 0.00 | 1 | -0.70 | 15 | -10.50 | | | Portnoy, Ivan Alberto | | | 1988 | COL | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Munoz, Jhon Edison | | | 2185 | COL | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Gomez, Samael | | | 2025 | COL | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Sanchez, Victor Hugo | | | 2170 | COL | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Mateus, Alejandro | | | 2192 | COL | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Restrepo, Juan Jose | | | 2060 | COL | 1.00 | 1 | 0.25 | 15 | 3.75 | |
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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