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Individual Calculations September 2009 |
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| Fouad, Andro W. Total change: 28.50 | |   |
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| African Youth Chess Championships 2009 (u14 Boys) | Cape Town | RSA | 2009-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1619 | 1866 | 1.00 | 2 | -0.61 | 25 | -15.25 | |
|  Du Toit, Stefan M. | | | 1637 | RSA | 0.00 | 1 | -0.79 | 25 | -19.75 | | | Modi, Jaishil B. | | | 1600 | RSA | 1.00 | 1 | 0.18 | 25 | 4.50 | |
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) | | | | Egy Open 1st Part | Cairo | EGY | 2009-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2121 | 1866 | 2.50 | 4 | 1.75 | 25 | 43.75 | |
| | Abdel Ghany, Adel | | | 2187 | EGY | 0.00 | 1 | -0.13 | 25 | -3.25 | |  Khalefa, Adel | | | 2131 | EGY | 1.00 | 1 | 0.82 | 25 | 20.50 | | | Gamal Eldin, Shereif | | | 2083 | EGY | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Samy, Mahmoud | | | 2082 | EGY | 1.00 | 1 | 0.78 | 25 | 19.50 | |
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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