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Individual Calculations September 2009 |
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| Ferreira, Miguel Total change: 1.50 | |   |
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| Taca de Portugal 2008-09 | various | POR | 2008-12-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1808 | 1.00 | 2 | 0.47 | 15 | 7.05 | |
|  Santos, Antonio Severino | | | 1868 | POR | 1.00 | 1 | 0.58 | 15 | 8.70 | |  Galego, Luis | g | | 2158 | POR | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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 Open Internacional Cidade de Espinho 2009 | Espinho | POR | 2009-06-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1822 | 1846 | 2.00 | 5 | -0.69 | 15 | -10.35 | |
| | Silva, Stephane | | | 2196 | POR | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Dias, Ivo Rodrigues | | | 1528 | POR | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Cardoso, Alexander | | | 1633 | POR | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Bolhari, Orfeh | | | 2127 | IRI | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Ferreira, Susana Carolina | | | 1625 | POR | 0.00 | 1 | -0.78 | 15 | -11.70 | |
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) | | | | Distrital do Porto - Fase Final | Porto | POR | 2009-06-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 1846 | 2.00 | 4 | 0.32 | 15 | 4.80 | |
| | Ferreira, Jorge Joao | | | 2186 | POR | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Mendes, Pedro Miguel | | | 1637 | POR | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Figueiredo, Bruno | | | 1929 | POR | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Sousa, Emanuel | | | 1922 | POR | 1.00 | 1 | 0.60 | 15 | 9.00 | |
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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