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Individual Calculations October 2017 |
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| Silva, Roberto Cardoso Da Total change: 2.40 | |   |
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| XX IRT LMX Circuito Maranhense de Xadrez STD etapa Caxias | Caxias MA | BRA | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1857 | 1930 | 2.50 | 4 | 0.12 | 20 | 2.40 | |
|  Abreu, Nilton Silva | | | 1990 | BRA | 0.50 | 1 | 0.08 | 20 | 1.60 | |  Silva, Valdecir Batista | | | 1926 | BRA | 0.00 | 1 | -0.51 | 20 | -10.20 | | | De Melo, Wladimir Ferreira | | | 1831 | BRA | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Silva Filho, Dombosco Lima | | | 1679 | BRA | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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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