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Individual Calculations September 2009 |
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| Alaa El Din, Yosra Total change: -20.50 | |   |
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| 2009 African Individual Chess Championship (women) | Tripoli | LBA | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1913 | 1.00 | 5 | -0.82 | 25 | -20.50 | |
|  Mona, Khaled | | wg | 2094 | EGY | 1.00 | 1 | 0.74 | 25 | 18.50 | | | Latreche, Sabrina | | wf | 1968 | ALG | 0.00 | 1 | -0.42 | 25 | -10.50 | |  Solomons, Anzel | | wm | 1932 | RSA | 0.00 | 1 | -0.47 | 25 | -11.75 | | | Mezioud, Amina | | wm | 2034 | ALG | 0.00 | 1 | -0.34 | 25 | -8.50 | | | Greeff, Melissa | | wm | 2038 | RSA | 0.00 | 1 | -0.33 | 25 | -8.25 | |
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) | | |
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