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Individual Calculations July 2011 |
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| Costa, Jorge Total change: -6.75 | |   |
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| 33 Taca de Portugal | several | POR | 2010-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2031 | 0.00 | 1 | -0.29 | 15 | -4.35 | |
|  Costa, Joao Guerra | | | 2191 | POR | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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 por equipas | distrito Braga | POR | 2011-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1971 | 2020 | 2.00 | 4 | -0.16 | 15 | -2.40 | |
| | Castro, Henrique | | | 2216 | POR | 0.00 | 1 | -0.25 | 15 | -3.75 | |  Branco, Ricardo Joao | | | 1880 | POR | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Khodorov, Anatoli | | | 2169 | POR | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Melo, David | | | 1620 * | POR | 1.00 | 1 | 0.08 | 15 | 1.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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