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Individual Calculations April 2009 |
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| Hamam, Mahmoud Total change: 3.90 | |   |
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| 11th Mahalla Open | Mahalla | EGY | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2179 | 2049 | 1.00 | 3 | 0.02 | 15 | 0.30 | |
|  Abdel Fatah, Mohamed | | | 2168 | EGY | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Aly, Hosam | | | 2139 | EGY | 1.00 | 1 | 0.62 | 15 | 9.30 | |  Mousa, Ahmed | | | 2230 | EGY | 0.00 | 1 | -0.26 | 15 | -3.90 | |
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 |
| 2248 | 2049 | 1.50 | 5 | 0.24 | 15 | 3.60 | |
| | Salem, Zahed | | | 2259 | EGY | 1.00 | 1 | 0.77 | 15 | 11.55 | | | Sameeh, Hany | f | | 2270 | EGY | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Sarwat, Walaa | m | | 2388 | EGY | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Abd El Fatah, Reda Fadel | | | 2187 | EGY | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Ibrahim, Mohamed | | | 2138 | EGY | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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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