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Individual Calculations May 2011 |
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| Costa, Giovannide Almeida Total change: 2.55 | |   |
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| VIII IRT da Hebraica | Sao Paulo/SP | BRA | 2011-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1931 | 1908 | 3.00 | 9 | -1.23 | 15 | -18.45 | |
|  Sztokbant, Bernardo Vainzoff | | | 1995 | BRA | 1.00 | 1 | 0.62 | 15 | 9.30 | |  Roverso, Leandro | | | 1874 | BRA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Aoyama, Edmundo | | | 1955 | BRA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Branchini, Fernando Luis Sakamoto | | | 1952 | BRA | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Januario, Thais Maia | | | 1897 | BRA | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Salama, Henrique Eric. | | | 1880 | BRA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Farah, Daniel Landshoff | | | 1940 | BRA | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Cirilo, Guilherme De Araujo | | | 1897 | BRA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Abdalla, Jose Lucas Aurelli | | | 1987 | BRA | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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) | | | | Campeonato Brasileiro Amador 2011 | São Paulo/SP | BRA | 2011-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1977 | 1894 | 1.50 | 2 | 0.73 | 15 | 10.95 | |
| | Rodrigo Da Silva, Edson | | | 1981 | BRA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Costa, Joao Carlos Da | | | 1973 | BRA | 1.00 | 1 | 0.61 | 15 | 9.15 | |
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) | | | | III Copa de Xadrez Cidade de Curitiba (IRT) | Curitiba/PR | BRA | 2011-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2154 | 1894 | 1.00 | 3 | 0.44 | 15 | 6.60 | |
| | Gallo Ponce, Elbert | | | 2231 | PER | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Starke, Bruno Orlando | | | 2125 | BRA | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Ferreira, Euclides Roberto | | | 2105 | BRA | 0.00 | 1 | -0.23 | 15 | -3.45 | |
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) | | | | Aberto do Brasil CXSP - Bienal Joao Braga | Sao Paulo/SP | BRA | 2011-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2024 | 1894 | 1.00 | 2 | 0.23 | 15 | 3.45 | |
| | Shumyatsky, Victor | f | | 2294 * | BRA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | De Sousa, Felipe Mazim | | | 1754 | BRA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | * 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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