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Individual Calculations April 2009 |
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| Lotfy, Abdel Rahman 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 |
| 2153 | 2164 | 3.00 | 5 | 0.42 | 15 | 6.30 | |
|  Shoieb, Mohamed | | | 2066 | EGY | 1.00 | 1 | 0.37 | 15 | 5.55 | |  Ibrahim, Hatim | | | 2299 | EGY | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Saiid, Aly | | | 1998 | EGY | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Abdel Wahed, Tarek | | | 2085 | EGY | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Amin, Ashraf | | | 2315 | EGY | 0.00 | 1 | -0.30 | 15 | -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) | | | | 1st Elsead Club | Cairo | EGY | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2147 | 2164 | 0.00 | 3 | -1.59 | 15 | -23.85 | |
| | Sarwat, Walaa | m | | 2388 | EGY | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Gamal Eldin, Shereif | | | 2079 | EGY | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Abdel Hafeiz, Ayman | | | 1975 | EGY | 0.00 | 1 | -0.75 | 15 | -11.25 | |
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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