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Individual Calculations January 2015 |
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| Barros, Ubirajara Barbosa Total change: -49.20 | |   |
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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 |
| 1729 | 1553 | 1.00 | 4 | -0.15 | 40 | -6.00 | |
|  De Oliveira, Jefferson Pereira | | | 1935 | BRA | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Felix, Dieggo Guerra | | | 1701 | BRA | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Da Silva Filho, Joaquim Virgulin | | | 1624 | BRA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Ferreira, Alexander | | | 1657 | BRA | 1.00 | 1 | 0.64 | 40 | 25.60 | |
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 |
| 1770 | 1553 | 0.00 | 4 | -1.08 | 40 | -43.20 | |
| | De Souza, Rondinelle Pessoa | | | 1953 * | BRA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Pinheiro, Davi Sales | | | 1953 * | BRA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Born, Ary | | | 1427 | BRA | 0.00 | 1 | -0.67 | 40 | -26.80 | | | Prisma, Zenil Da Costa | | | 1745 | BRA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | * 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) | | |
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