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Individual Calculations January 2010 |
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| Sanabria Rangel, Sergio Andres Total change: 118.30 | |   |
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| IV Festival Internacional de Ajedrez ELITE | Bogota (Colombia) | COL | 2009-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2305 | 2187 | 4.50 | 8 | 1.57 | 25 | 39.25 | |
|  Delgado Ramirez, Neuris | g | | 2587 * | CUB | 1.00 | 1 | 0.92 | 25 | 23.00 | |  Zuluaga, Cesar | f | | 2303 | COL | 0.00 | 1 | -0.34 | 25 | -8.50 | | | Cuartas, Carlos | m | | 2281 | COL | 0.50 | 1 | 0.13 | 25 | 3.25 | | | Tirado, Juan Camilo | | | 2015 | COL | 0.50 | 1 | -0.23 | 25 | -5.75 | | | Perez Olarte, Cesar Camilo | | | 2102 | COL | 1.00 | 1 | 0.38 | 25 | 9.50 | | | Zapata, Alonso | g | | 2536 | COL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Renteria, Jorge Eliecer | f | | 2248 | COL | 1.00 | 1 | 0.58 | 25 | 14.50 | | | Castro, Oscar H | m | | 2369 | COL | 0.50 | 1 | 0.24 | 25 | 6.00 | | | * 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) | | | NOTE: K factor changed | | IRT Open de LAS AMERICAS | Medellin | COL | 2009-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2388 | 2187 | 6.00 | 7 | 4.24 | 15 | 63.60 | |
| | Tovio, Israel | | | 2299 | COL | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Perez Rodriguez, Luis Manuel | g | | 2511 | CUB | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Zuluaga, Cesar | f | | 2290 | COL | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Barrientos, Sergio E | m | | 2468 | COL | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Cuartas, Jorge Humberto | f | | 2307 | COL | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Gallego Alcaraz, Andres Felipe | | | 2401 | COL | 1.00 | 1 | 0.77 | 15 | 11.55 | | | Medina Paz, Miguel | | | 2439 | ECU | 0.50 | 1 | 0.31 | 15 | 4.65 | |
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 Open Internacional Navideno Ciudad de Bogota | Bogota Colombia | COL | 2009-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2083 | 2187 | 4.00 | 5 | 1.03 | 15 | 15.45 | |
| | Corpus Vanegas, Eugenio | | | 1797 | COL | 1.00 | 1 | 0.09 | 15 | 1.35 | | | Cardozo, Carlos Eduardo | | | 1795 | COL | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Vittorino, Carlo Giovanni | f | | 2337 | COL | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Contreras, Henry | f | | 2198 | COL | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Zuluaga, Cesar | f | | 2290 | COL | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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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