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Individual Calculations September 2014 |
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| Pinheiro, Davi Sales Total change: 34.00 | |   |
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| IV IRT Academia Potiguar de Xadrez | Natal/RN | BRA | 2014-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1902 | 1988 | 4.00 | 4 | 1.60 | 40 | 64.00 | |
|  Barbosa, Vitor Hugo Villar Danta | | | 1665 | BRA | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Da Silva Tomaz, Luiz Antonio | | | 1930 | BRA | 1.00 | 1 | 0.42 | 40 | 16.80 | |  Lemos, Doriedson | | | 2024 | BRA | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Xavier, Lucca Lucas | | | 1989 | BRA | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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) | | | NOTE: K factor changed | | Aberto do Brasil - Taca Joao Pessoa 2014 | Joao Pessoa/PB | BRA | 2014-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1988 | 3.00 | 6 | -0.94 | 20 | -18.80 | |
| | Barros, Ubirajara Barbosa | | | 1588 * | BRA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Cavalcanti, Francisco De Assis | f | | 2202 | BRA | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Francelli, Derli | | | 1683 | BRA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Carvalho, Herbert Abreu | | | 2195 | BRA | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Silva, Carolina Alves | | | 1713 | BRA | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Barbosa, Vitor Hugo Villar Danta | | | 1665 | BRA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | * 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) | | | NOTE: K factor changed | | Campeonato Potiguar Absoluto de Xadrez 2014 | Natal/RN | BRA | 2014-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 1988 | 2.50 | 7 | -0.56 | 20 | -11.20 | |
| | Macedo, Maximo Iack | m | | 2364 | BRA | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Dantas, Rhuan De Araujo | | | 1646 | BRA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Andrade, Roberto Luiz Costa | f | | 2205 | BRA | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Pinto, Carlos Henrique Lopes | f | | 2092 | BRA | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Da Silva, Tales Gomes | | | 1845 | BRA | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Pinto, Rafael Henrique | | | 2063 | BRA | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Azevedo, Alcides Alexandre A. | | | 2048 | BRA | 0.00 | 1 | -0.42 | 20 | -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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