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Individual Calculations September 2009 |
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| Rocha Filho, Orlando Donato Total change: 3.25 | |   |
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| IV Aberto Xadrez Potiguar | Natal/RN | BRA | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1969 | 1793 | 1.00 | 3 | 0.13 | 25 | 3.25 | |
|  Carvalho, Felipe Lobo C. | | | 2141 | BRA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Leal Assuncao, Matheus | | | 1881 | BRA | 1.00 | 1 | 0.62 | 25 | 15.50 | | | Rodrigues, Flavio Leite | | | 1884 | BRA | 0.00 | 1 | -0.38 | 25 | -9.50 | |
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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