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Individual Calculations April 2009 |
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| Costa, Joao Carlos Sequeira Total change: -25.20 | |   |
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| Distrital de Braga de sub-16 | Guimaraes | POR | 2009-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1552 | 1618 | 1.00 | 4 | -1.37 | 15 | -20.55 | |
|  Ribeiro, Ricardo Andre M. Dias | | | 1553 | POR | 0.50 | 1 | -0.09 | 15 | -1.35 | |  Machado, Carlos Antonio Francisco | | | 1628 | POR | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Vale, Antonio | | | 1447 | POR | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Meireles, Ana Maria Queiros | | | 1578 | POR | 0.00 | 1 | -0.56 | 15 | -8.40 | |
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 de Braga de sub-16 | Guimaraes | POR | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1573 | 1618 | 2.50 | 5 | -0.31 | 15 | -4.65 | |
| | Vale, Antonio | | | 1447 | POR | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Cruz, Joao Filipe | | | 1663 | POR | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Ribeiro, Ricardo Andre | | | 1553 | POR | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Machado, Carlos | | | 1628 | POR | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Gomes, Rui Pedro | | | 1575 | POR | 0.00 | 1 | -0.56 | 15 | -8.40 | |
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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