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Individual Calculations January 2011 |
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| Cortes, Arias Mariela Total change: -35.25 | |   |
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| World Youth Chess Championships 2010 - Girls under 18 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1862 | 1772 | 1.50 | 8 | -1.65 | 15 | -24.75 | |
|  Semenova, Elena | | wf | 2135 | RUS | 0.00 | 1 | -0.10 | 15 | -1.50 | |  Suarez Calvo, Alesandra | | | 2006 | ESP | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Vatkali, Dimitra | | | 1970 | GRE | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Zalimaite, Ieva | | | 1926 | LTU | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Datta, Anjali | | | 2025 | USA | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Yang, Marguerite | | | 1574 | CAN | 0.00 | 1 | -0.76 | 15 | -11.40 | | | McDonald, Maryann | | | 1514 | SCO | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Bubanja, Milica | | | 1743 | MNE | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | | | VII Sudamericano de la juventud 2010 - Sub - 18 Damas | Sucre - Bolivia | BOL | 2010-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1776 | 1768 | 1.50 | 4 | -0.44 | 15 | -6.60 | |
| | Matute Loja, Belen | | | 1936 | ECU | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Mendoza, Samanta | | | 1769 | BOL | 0.50 | 1 | 0.00 | 15 | 0.00 | | | De Oliveira, Ana Paula | | wc | 1854 | BRA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Porporatto, Carolina | | | 1544 | ARG | 1.00 | 1 | 0.22 | 15 | 3.30 | |
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) | | | | III IRT CORE ANTOFAGASTA | Antofagasta | CHI | 2010-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2092 | 1768 | 0.50 | 5 | -0.26 | 15 | -3.90 | |
| | Rios Escobar, Adan Humberto | | | 2168 * | CHI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Mesias Rojas, Rabindranath | | | 2168 * | CHI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Cerda Albornoz, Guillermo | f | | 2168 * | CHI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Paez Medina, Guillermo Alejandr | | | 2135 | CHI | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Garmendia Vega, Gabriel | | | 1822 | CHI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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