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Individual Calculations January 2010 |
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| Ortiz Rubio, Alfonso Total change: 0.00 | |   |
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| North America Youth Chess Championships Under 14 | Mazatlan, Sinaloa | MEX | 2009-10-01 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1885 | 0 | 3.00 | 5 | 0.00 | 1898 | | 0.00 | |
|  Lopez Raygoza, Luis Albert | | | 1723 | MEX | 1.00 | 1 | 0.00 | | 0.00 | |  Real Pereyra, Diana Carime | | | 1910 | MEX | 1.00 | 1 | 0.00 | | 0.00 | | | Torres Rosas, Rita Rosalia | | | 1797 | MEX | 0.50 | 1 | 0.00 | | 0.00 | | | Finney, Stuart | | | 1985 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Torres Rosas, Luis Carlos | c | | 2010 | MEX | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | |
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