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Individual Calculations September 2009 |
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| Macedo, Alexandre Soares De Total change: -19.80 | |   |
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| Torneio Gov. Miguel Arraes NORDESTAO | Recife/PE | BRA | 2009-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2022 | 2005 | 1.00 | 2 | 0.04 | 15 | 0.60 | |
|  Melo, Fernando Antonio Albuquerqu | | | 1873 | BRA | 1.00 | 1 | 0.32 | 15 | 4.80 | |  Souza, Marcos Valerio A. | | | 2170 | BRA | 0.00 | 1 | -0.28 | 15 | -4.20 | |
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) | | | | IV Aberto Xadrez Potiguar | Natal/RN | BRA | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2037 | 2000 | 0.00 | 3 | -1.36 | 15 | -20.40 | |
| | Barreto Filho, Carlos Alberto | f | | 2257 | BRA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Da Costa, Jose Artanael Campos | | | 2051 | BRA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Damasceno, Alecio Souza | | | 1804 | BRA | 0.00 | 1 | -0.75 | 15 | -11.25 | |
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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