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Individual Calculations July 2015 |
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| Brasil, Alberto Silveira Total change: 15.80 | |   |
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| Zonal Bahia STD 2015 | Salvador/BA | BRA | 2015-06-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1896 | 2004 | 4.00 | 6 | 0.25 | 20 | 5.00 | |
|  Da Silva, Claus Benicio | | | 1604 * | BRA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Fiaes, Mario Henrique Andrade | | | 2137 | BRA | 0.00 | 1 | -0.32 | 20 | -6.40 | |  Souza, Jailson Ferreira | | | 1824 | BRA | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Barreto Junior, Williem Silva | | | 2015 | BRA | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Vieira, Wilter Pereira | | | 1870 | BRA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Andrade, Francisco Antonio De | | | 1926 | BRA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | * 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) | | | | II IRT Challenge Chess da FBX BA | Salvador/BA | BRA | 2015-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1802 | 2004 | 8.00 | 10 | 0.54 | 20 | 10.80 | |
| | Straatmann, Carlos Alberto | | | 1626 | BRA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Amaral, Caico Soares | | | 1926 | BRA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Oliveira, Antonio Pereira | | | 1791 | BRA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Silva, Jose Romain T Da Costa E | | | 1746 | BRA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | De Lima, Carlos Alberto Ribeiro | | | 1919 | BRA | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Straatmann, Carlos Alberto | | | 1626 | BRA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Amaral, Caico Soares | | | 1926 | BRA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Oliveira, Antonio Pereira | | | 1791 | BRA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Silva, Jose Romain T Da Costa E | | | 1746 | BRA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | De Lima, Carlos Alberto Ribeiro | | | 1919 | BRA | 0.50 | 1 | -0.12 | 20 | -2.40 | |
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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