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Individual Calculations September 2009 |
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| Ereba, Amr Total change: 2.25 | |   |
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| Egy Open 1st Part | Cairo | EGY | 2009-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 2005 | 1.50 | 5 | 0.09 | 25 | 2.25 | |
|  Eldesoky, Hatem | | | 2237 | EGY | 1.00 | 1 | 0.79 | 25 | 19.75 | |  Ameir, Moheb | | | 2088 | EGY | 0.00 | 1 | -0.39 | 25 | -9.75 | | | Elsayed, Moustafa | | | 2216 | EGY | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Tork, Mohamed | | | 2135 | EGY | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Abdel Rahman, Alla | | | 2189 | EGY | 0.00 | 1 | -0.26 | 25 | -6.50 | |
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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