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Individual Calculations January 2010 |
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| Valencia Hernandez, Rubi Total change: -30.50 | |   |
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| North America Youth Chess Championships Under 12 | Mazatlan, Sinaloa | MEX | 2009-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1770 | 1732 | 0.00 | 1 | -0.45 | 25 | -11.25 | |
|  Valenzuela Martinez, Herme | | | 1770 | MEX | 0.00 | 1 | -0.45 | 25 | -11.25 | |
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) | | | | World Youth Chess Championship-u12g | Antalya | TUR | 2009-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1754 | 1723 | 2.00 | 6 | -0.77 | 25 | -19.25 | |
| | Rodionova, Daria | | | 1888 | RUS | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Valieva, Rufina | | | 1942 | RUS | 0.50 | 1 | 0.28 | 25 | 7.00 | |  Bellaiche, Elise | | | 1857 | FRA | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Grgic, Neomi | | | 1653 | CRO | 1.00 | 1 | 0.40 | 25 | 10.00 | | | Ozturk, Hilal | | | 1635 | TUR | 0.00 | 1 | -0.62 | 25 | -15.50 | | | Goyal, Arunima | | | 1550 | IND | 0.50 | 1 | -0.23 | 25 | -5.75 | |
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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