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Individual Calculations September 2009 |
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| Batista, Sandro Total change: 18.15 | |   |
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| IV Open Internacional Cidade de Espinho 2009 | Espinho | POR | 2009-06-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2010 | 1754 | 2.00 | 4 | 1.21 | 15 | 18.15 | |
|  Bolhari, Orfeh | | | 2104 | IRI | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Araujo, Jose Veressimo | | | 1955 | POR | 1.00 | 1 | 0.76 | 15 | 11.40 | |  Mateus, Francisco | | | 1876 | POR | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Carneiro, Carlos | | | 2104 | 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) | | |
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