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Individual Calculations September 2009 |
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| Ibrahim, Mohamed Total change: 5.70 | |   |
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| Egy Open 1st Part | Cairo | EGY | 2009-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2087 | 2116 | 2.00 | 3 | 0.38 | 15 | 5.70 | |
|  Ghanaym, Mohamed Ayman | | | 1991 | EGY | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Elsayed, Moustafa | | | 2216 | EGY | 0.50 | 1 | 0.14 | 15 | 2.10 | |  Aly Ibrahim, Alaa | | | 2054 | EGY | 0.50 | 1 | -0.09 | 15 | -1.35 | |
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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