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Individual Calculations September 2011 |
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| Passos Coutinho, Eduardo Total change: 14.25 | |   |
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| Aberto do Brasil Xadrez Brasil Open 2011 | Rio de Janeiro/RJ | BRA | 2011-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2154 | 1796 | 1.00 | 2 | 0.78 | 15 | 11.70 | |
|  Guimaraes, Wagner Peixoto | f | | 2196 * | BRA | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Azevedo, Kelsen Rosas | | | 2111 | BRA | 1.00 | 1 | 0.86 | 15 | 12.90 | | | * 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) | | | | III Campeonato Paraibano Aberto Absoluto 2011 | Joao Pessoa/PB | BRA | 2011-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1796 | 1.00 | 3 | 0.17 | 15 | 2.55 | |
| | De Moura, Sergio Jovelino | | | 2062 | BRA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Souza, Marcos Valerio A | | | 2107 | BRA | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Da Silva, Antonio Dutra | | | 1791 | BRA | 0.50 | 1 | -0.01 | 15 | -0.15 | |
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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