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Individual Calculations April 2009 |
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| Hesham, Abdelrahman Total change: 17.55 | |   |
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| 11th Mahalla Open | Mahalla | EGY | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2219 | 2085 | 1.50 | 5 | -0.12 | 15 | -1.80 | |
|  Mousa, Ahmed | | | 2230 | EGY | 1.00 | 1 | 0.69 | 15 | 10.35 | |  Tork, Mohamed | | | 2204 | EGY | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Amin, Ashraf | | | 2315 | EGY | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Fatehy, Tarek | | | 2226 | EGY | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Shehata, Aly | | | 2118 | EGY | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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) | | | | Boys Under 18 | Cairo | EGY | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 2085 | 2.00 | 3 | -0.07 | 15 | -1.05 | |
| | Ehab, Mohamed | | | 1886 | EGY | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Fadi, Marko | | | 2036 | EGY | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Magdy, Andro | | | 1897 | EGY | 0.00 | 1 | -0.74 | 15 | -11.10 | |
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) | | | | 1st Elsead Club | Cairo | EGY | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2217 | 2085 | 4.00 | 8 | 1.36 | 15 | 20.40 | |
| | Elgabry, Mohsen | m | | 2273 | EGY | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Abdel Rahman, Alla | | | 2174 | EGY | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Ragheb, Malak | | | 2269 | EGY | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Mousa, Ahmed | | | 2230 | EGY | 1.00 | 1 | 0.69 | 15 | 10.35 | | | El Ghazali, Youssef M. | m | | 2367 | EGY | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Naby, Saiid A. | | | 2289 | EGY | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Refaat, Ibrahim | | | 1818 | EGY | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Rahman, Yehya | m | | 2317 | EGY | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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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