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Individual Calculations September 2012 |
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| Martinez Alcantara, Jose E Total change: 16.95 | |   |
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| II Open IRT " Circulo Peruano de Ajedrez" | Lima | PER | 2012-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1944 | 2023 | 4.50 | 6 | 0.95 | 15 | 14.25 | |
|  Tapia Huerta, Josias | | | 1683 | PER | 1.00 | 1 | 0.12 | 15 | 1.80 | |  Sanchez Zambrano, Vanessa | | | 1760 | PER | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Principe, Alexander | f | | 2130 | PER | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Fernandez, Fernando | | | 2326 | PER | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Cruz Pereyra, Andresantoni | | | 1772 | PER | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Cori Quispe, Kevin | | | 1990 | PER | 1.00 | 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) | | | | XXIII Festival Panamericano de Ajedrez de la Juventud Open sub 14 | Lima | PER | 2012-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1966 | 2155 | 6.00 | 8 | 0.18 | 15 | 2.70 | |
| | Murga, Caleb | | | 1758 | PER | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Gomez Vazquez, Carlos | | | 1847 | MEX | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Uzcategui, Alejandro | | | 1927 | VEN | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Leon Magallanes, Isaac | | | 2045 | ECU | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Lim, Michael | c | | 2068 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Barros Rivadeneira, Cristhian | f | | 2193 | ECU | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Cori Quispe, Kevin | | | 2017 | PER | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Aguilar, Luis Miguel | | | 1870 | BOL | 1.00 | 1 | 0.16 | 15 | 2.40 | |
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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