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Individual Calculations July 2012 |
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| Mejia Herrera, Kevin Total change: -18.60 | |   |
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| North America Youth Chess Championships U-18 | MEXICO DF | MEX | 2012-05-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1774 | 1685 | 1.00 | 4 | -0.62 | 30 | -18.60 | |
|  Diaz Rosas, Julio Cesar | | | 2082 | MEX | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Aguilar Austria, Ruben | | | 1734 | MEX | 0.50 | 1 | 0.07 | 30 | 2.10 | | | Ayala Estrada, Rosa Maria | | | 1488 | MEX | 0.50 | 1 | -0.25 | 30 | -7.50 | | | Quiroga Garza, Juan Manuel | | | 1790 | MEX | 0.00 | 1 | -0.36 | 30 | -10.80 | |
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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