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Individual Calculations January 2013 |
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| Acosta, Jaime Total change: -65.70 | |   |
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| IRT Campeonato Bolivariano de Ajedrez 2012 | Bogota | COL | 2012-12-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1836 | 1710 | 1.00 | 7 | -1.45 | 30 | -43.50 | |
|  Borbon, Oscar | | | 1968 | COL | 0.00 | 1 | -0.18 | 30 | -5.40 | |  Penas Burgos, Nestor | | | 1752 | COL | 0.00 | 1 | -0.44 | 30 | -13.20 | | | Aldana, Boris Eugenio | | | 1636 | COL | 1.00 | 1 | 0.40 | 30 | 12.00 | | | Suasnabar, Jesus | | | 2077 | PER | 0.00 | 1 | -0.10 | 30 | -3.00 | | | Pena Mora, Carlos | | | 1691 | COL | 0.00 | 1 | -0.53 | 30 | -15.90 | | | Guerrero, Hernando | | | 1919 | COL | 0.00 | 1 | -0.23 | 30 | -6.90 | | | Contreras, Miguel | | | 1808 | COL | 0.00 | 1 | -0.37 | 30 | -11.10 | |
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) | | | | III ITT JAHV McGREGOR | Bogota | COL | 2012-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1908 | 1710 | 0.00 | 3 | -0.74 | 30 | -22.20 | |
| | Duran Barraza, Mateo Andres | | | 1860 | COL | 0.00 | 1 | -0.30 | 30 | -9.00 | | | Florez, Edgar Mauricio | | | 1913 | COL | 0.00 | 1 | -0.24 | 30 | -7.20 | | | Diaz Herrera, Leider Andres | | | 1950 | COL | 0.00 | 1 | -0.20 | 30 | -6.00 | |
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) | | |
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