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Individual Calculations January 2015 |
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| De Oliveira, Jefferson Pereira Total change: -12.40 | |   |
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| Campeonato Paraibano de Xadrez 2014 | Joao Pessoa/PB | BRA | 2014-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 1935 | 2.00 | 4 | 0.34 | 40 | 13.60 | |
|  Barros, Ubirajara Barbosa | | | 1553 | BRA | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Brito, Luismar | f | | 2269 | BRA | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Dantas, Francisco | | | 1973 | BRA | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Cavalcanti, Francisco De Assis | f | | 2196 | BRA | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | | IV IRT AXCV 2014 | Joao Pessoa/PB | BRA | 2014-12-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1825 | 1935 | 0.00 | 1 | -0.65 | 40 | -26.00 | |
| | Silva, Ivanilson Pereira | | | 1825 | BRA | 0.00 | 1 | -0.65 | 40 | -26.00 | |
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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