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Individual Calculations July 2008 |
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| Zepeda, Sonia Total change: 30.60 | |   |
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| Campeonato Nacional Femenino 2008 | San Salvador | ESA | 2008-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2011 | 2048 | 2.00 | 5 | -0.74 | 15 | -11.10 | |
|  Pastor, Tania | | wf | 1972 | ESA | 1.00 | 1 | 0.40 | 15 | 6.00 | |  Castaneda, Ada | | wf | 2059 | ESA | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Zepeda, Lorena | | wm | 2145 | ESA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Melendez, Gabriela | | wf | 1911 | ESA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Avelar, Gabriela | | wf | 1966 | ESA | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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) | | | | Firts Tournament Selection Female 2008 | San Salvador | ESA | 2008-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 2091 | 5.50 | 7 | 1.11 | 15 | 16.65 | |
| | Castaneda, Ada | | wf | 2068 | ESA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Hernandez, Bera | | | 1819 | ESA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Pastor, Tania | | wf | 1959 | ESA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Avelar, Gabriela | | wf | 1973 | ESA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Melendez, Gabriela | | wf | 1927 | ESA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Sanchez, Ingrid | | | 2024 | ESA | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Zepeda, Lorena | | wm | 2176 | ESA | 0.50 | 1 | 0.12 | 15 | 1.80 | |
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) | | | | 2do. Tournament Selection Female 2008 | San Salvador | ESA | 2008-04-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 2091 | 5.00 | 7 | 0.61 | 15 | 9.15 | |
| | Melendez, Gabriela | | wf | 1927 | ESA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Zepeda, Lorena | | wm | 2176 | ESA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Hernandez, Bera | | | 1819 | ESA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Castaneda, Ada | | wf | 2068 | ESA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Sanchez, Ingrid | | | 2024 | ESA | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Avelar, Gabriela | | wf | 1973 | ESA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Pastor, Tania | | wf | 1959 | ESA | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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) | | | | Championship Panamerican Women 2008 | San Salvador | ESA | 2008-05-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2091 | 4.50 | 8 | 1.06 | 15 | 15.90 | |
| | Orozco, Luz Elena | | | 1946 | COL | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Yuan, Yuanling | | wf | 2119 | CAN | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Sanchez Castillo, Sarai | | wg | 2274 | VEN | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Zepeda, Lorena | | wm | 2176 | ESA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Mateus, Martha | | | 2189 | COL | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Arribas Robaina, Maritza | | wg | 2347 | CUB | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Castro, Azalea | | wf | 1967 | ESA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Frometa Castillo, Zirka | | wm | 2149 | CUB | 0.50 | 1 | 0.08 | 15 | 1.20 | |
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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