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Individual Calculations September 2009 |
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| Rocha, Vitor Firmo De Souza Total change: 8.40 | |   |
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| IV Aberto Xadrez Potiguar | Natal/RN | BRA | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1955 | 1738 | 1.50 | 4 | 0.56 | 15 | 8.40 | |
|  Wanderley, Rafaell M. | | | 2066 | POR | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Rodrigues, Flavio Leite | | | 1884 | BRA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Jordao Barbosa, Marcio | | | 1855 | BRA | 1.00 | 1 | 0.66 | 15 | 9.90 | |  Silva, Alexsandro Lira | | | 2013 | BRA | 0.50 | 1 | 0.33 | 15 | 4.95 | |
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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