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Individual Calculations September 2009 |
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| Chiari, Arthur Gontijo Total change: 41.10 | |   |
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| Aberto do Brasil - Etapa Conceicao do Rio Verde | Conceicao do Rio Verde/MG | BRA | 2009-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2079 | 1846 | 1.00 | 4 | 0.16 | 15 | 2.40 | |
|  Shiroma, Silvio Haruo | | | 2119 | BRA | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Silva, Sergio | | | 2072 | BRA | 0.50 | 1 | 0.29 | 15 | 4.35 | |  Mariano, Marceley Martins | | | 2043 | BRA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Resende, Carlos Alberto Filgueira | | | 2081 | BRA | 0.50 | 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) | | | | Continental Absolute Champioship 2009 | Sao Paulo Chess Club/SP | BRA | 2009-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2096 | 1854 | 4.00 | 11 | 1.71 | 15 | 25.65 | |
| | Borges, Leomar Barbero | f | | 2242 | BRA | 0.50 | 1 | 0.41 | 15 | 6.15 | | | Salazar, Carlos | | | 2189 | PER | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Lucena, Lincoln | f | | 2150 | BRA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Cella, Glaucio Dalla Cortt | | | 2044 | BRA | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Maia, Jose Eduardo Bastos O. | f | | 2118 | BRA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Roland, Marcos Maldonado | | | 2155 | BRA | 1.00 | 1 | 0.85 | 15 | 12.75 | | | Tratz, Leonardo Schmaedecke | | | 2032 | BRA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Chaves, Jorge Antonio Torres | | | 2102 | BRA | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Torres, Douglas Da Silva | | | 2069 | BRA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Camara, Jose Arruda | | | 1975 | BRA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Reis, Ernesto Guevara | | | 1985 | BRA | 0.50 | 1 | 0.18 | 15 | 2.70 | |
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) | | | | XX Panamericano Mar del Plata U12 Abs | Mar del Plata | ARG | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 1854 | 2.00 | 4 | 0.87 | 15 | 13.05 | |
| | Shen, Arthur | | | 2043 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Pichot, Alan | f | | 2052 | ARG | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Pamatmat, Jarod, M | | | 2033 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Fernandez Perez, Jorge Andre | | | 1950 | PER | 1.00 | 1 | 0.63 | 15 | 9.45 | |
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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