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Individual Calculations June 2018 |
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| Boabaid, Jorge Alberto Duardes Total change: -27.00 | |   |
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| World Amateur Championship 2018 under 2000 | Cagliari | ITA | 2018-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1747 | 1827 | 4.00 | 9 | -1.46 | 20 | -29.20 | |
|  Petruccioli, Antonio | | | 1974 | ITA | 0.00 | 1 | -0.30 | 20 | -6.00 | |  Rooplal, Desmond | | | 1756 | RSA | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Scarpa, Claudia | | | 1743 | ITA | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Liguori, Aniello | | | 1707 | ITA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Musallam, Salim Al Aamri | | | 1710 | OMA | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Scarpa, Alessandra | | | 1648 | ITA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Marras, Giuseppe | | | 1769 | ITA | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Atzori, Filippo | | | 1690 | ITA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Minelli, Fausto | | | 1730 | BRA | 0.00 | 1 | -0.63 | 20 | -12.60 | |
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) | | | | Aberto do Brasil das 3 Fronteiras - Itaipu Binacional | Foz do Iguacu PR | BRA | 2018-05-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1804 | 1842 | 5.00 | 9 | 0.11 | 20 | 2.20 | |
| | Perdomo, Leandro | m | | 2242 * | ARG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Monteiro, Daniel Zotelli | | | 1442 * | BRA | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Cordioli, Jairo Ribeiro | | | 1862 | BRA | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Schultz, Rauanda | | | 1583 | BRA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | De Oliveira, Francemir Barra | | | 1597 | BRA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Gamarra, Ramon | | | 1925 | PAR | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Vazquez, Alejandro | | | 1561 | PAR | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Acosta, Pablo Alejandro | | | 1932 | ARG | 1.00 | 1 | 0.62 | 20 | 12.40 | | | Urquiza, Marcello De Albuquerque | | | 2092 | BRA | 0.50 | 1 | 0.31 | 20 | 6.20 | | | * 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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