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Individual Calculations April 2009 |
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| Ehab, Mohamed Total change: 23.50 | |   |
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| 11th Mahalla Open | Mahalla | EGY | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2202 | 1886 | 0.50 | 2 | 0.23 | 25 | 5.75 | |
|  Abdel Hameed, Mohamed | | | 2167 | EGY | 0.50 | 1 | 0.34 | 25 | 8.50 | | | Ezat, Abdallah | | | 2236 | EGY | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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 |
| 2061 | 1886 | 0.00 | 2 | -0.54 | 25 | -13.50 | |
|  Hesham, Abdelrahman | c | | 2085 | EGY | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Fadi, Marko | | | 2036 | EGY | 0.00 | 1 | -0.30 | 25 | -7.50 | |
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) | | | | 1st Elsead Club | Cairo | EGY | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2097 | 1886 | 3.50 | 9 | 1.25 | 25 | 31.25 | |
| | Tork, Mohamed | | | 2204 | EGY | 0.50 | 1 | 0.37 | 25 | 9.25 | | | Aly, Elhares | | | 2226 | EGY | 0.00 | 1 | -0.12 | 25 | -3.00 | | | Abdel Rahman, Alla | | | 2174 | EGY | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Mona, Khaled | | wg | 2016 | EGY | 0.00 | 1 | -0.32 | 25 | -8.00 | | | Hassan, Waleid Ahmed | | | 1775 | EGY | 0.50 | 1 | -0.15 | 25 | -3.75 | | | Kamel, Nabil | | | 2119 | EGY | 1.00 | 1 | 0.79 | 25 | 19.75 | | | Aly Ibrahim, Alaa | | | 2110 | EGY | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Yehya, Mohamed | | | 2022 | EGY | 1.00 | 1 | 0.68 | 25 | 17.00 | | | Mansour, Salah | | | 2223 | EGY | 0.00 | 1 | -0.12 | 25 | -3.00 | |
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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