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Individual Calculations September 2009 |
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| Ameir, Moheb Total change: 5.10 | |   |
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| African Youth Chess Championships 2009 (u18 Boys) | Cape Town | RSA | 2009-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2071 | 2088 | 1.50 | 3 | -0.07 | 15 | -1.05 | |
|  Hesham, Abdel R. | c | | 2130 | EGY | 0.50 | 1 | 0.06 | 15 | 0.90 | |  Hercules, Benjamin V. | | | 2054 | RSA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Rahman, Mohamed Na. | | | 2028 | EGY | 1.00 | 1 | 0.42 | 15 | 6.30 | |
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 |
| 2067 | 2088 | 3.50 | 5 | 0.87 | 15 | 13.05 | |
| | Ereba, Amr | | | 2005 | EGY | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Shehata, Aly | | | 2147 | EGY | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Sabry, Taher | | | 2091 | EGY | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Zayan, Osama | | | 2183 | EGY | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Ehab, Mohamed | | | 1910 | EGY | 0.50 | 1 | -0.23 | 15 | -3.45 | |
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) | | | | 5th Asiut International Open | Asiut | EGY | 2009-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 2088 | 1.50 | 5 | -0.46 | 15 | -6.90 | |
| | Wageih, Kareim | m | | 2257 | EGY | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Saber, Ibrahim | | | 2218 | EGY | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Hassan, Amrou | | | 1995 | EGY | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Salah, Sayed | | | 2172 | EGY | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Abdel Fatah, Mohamed | | | 2196 | EGY | 0.00 | 1 | -0.35 | 15 | -5.25 | |
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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