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Individual Calculations September 2015 |
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| Ahmed, Moustafa Elsayed Total change: 8.00 | |   |
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| 16th. Mahalla Open | Mahalla | EGY | 2015-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1966 | 2031 | 3.50 | 6 | 0.12 | 20 | 2.40 | |
|  Salah, Sayed | | | 2165 | EGY | 0.00 | 1 | -0.32 | 20 | -6.40 | |  Sobhy, Magdy | | | 1676 | EGY | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Hassan, Sayed Barakat | m | | 2333 | EGY | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Amin, Khaled Mohamed | | | 1765 | EGY | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Moatamid, Yasser | | | 1692 | EGY | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Sayed, Hany | | | 2163 | EGY | 1.00 | 1 | 0.68 | 20 | 13.60 | |
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) | | | | Zagazig Open 2015 | Zagazig | EGY | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1965 | 2031 | 2.50 | 4 | 0.28 | 20 | 5.60 | |
| | Mamdouh, Mostafa | | | 1631 * | EGY | 1.00 | 1 | 0.08 | 20 | 1.60 | | | El Arousy, Abdul Hameed | m | | 2250 | EGY | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Gabr, Mohsen | | | 2212 | EGY | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Amin, Khaled Mohamed | | | 1765 | EGY | 1.00 | 1 | 0.18 | 20 | 3.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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