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Individual Calculations September 2012 |
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| Piraquive, Alberto Total change: 14.10 | |   |
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| Open IRT de Verano | Bogota | COL | 2012-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1871 | 1988 | 3.00 | 4 | 0.47 | 30 | 14.10 | |
|  Sosa Florez, Luis Felipe | | | 1813 | COL | 1.00 | 1 | 0.27 | 30 | 8.10 | |  Trujillo, Otoniel | | | 2187 | COL | 0.00 | 1 | -0.24 | 30 | -7.20 | | | Rosero, Hugo Alberto | | | 1617 | COL | 1.00 | 1 | 0.10 | 30 | 3.00 | | | Corpus Vanegas, Eugenio Miguel | | | 1867 | COL | 1.00 | 1 | 0.34 | 30 | 10.20 | |
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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