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Individual Calculations September 2011 |
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| Poon, Yu Tien Total change: -17.10 | |   |
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| XXII Torneo Panamericano de Ajedrez de la Juventud 2011 U-12 Absoluto | Cali | COL | 2011-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1695 | 1890 | 3.50 | 7 | -1.70 | 15 | -25.50 | |
|  Bernuy, Carlos | | | 1577 | PER | 1.00 | 1 | 0.14 | 15 | 2.10 | |  Torres, Mauricio | | | 1705 | PAR | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Naranjo, Irwin | | | 1618 | ECU | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Tello Chavez, Isaac Valent | | | 1715 | MEX | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Murga Valenzuela, Caleb | | | 1639 | PER | 0.50 | 1 | -0.31 | 15 | -4.65 | | | Anillo Castro, Alfonso | | | 1855 | COL | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Oliveira, Tiago Lopes | | | 1753 | BRA | 0.00 | 1 | -0.68 | 15 | -10.20 | |
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) | | | | Caribbean Chess Carnival 2011 Under 20 | Port of Spain | TTO | 2011-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1980 | 1890 | 2.50 | 5 | 0.56 | 15 | 8.40 | |
| | Waldron, Omari | | | 1864 | TRI | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Gill, Joseph | | | 1936 | TRI | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Cabralis, Keron | f | | 2155 | TRI | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Singh, Vishnu | | | 2019 | TRI | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Tjong Tjin Joe, Calvin | | | 1928 | SUR | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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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