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Individual Calculations April 2009 |
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| Nader, Mohamed Total change: -4.95 | |   |
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| 11th Mahalla Open | Mahalla | EGY | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2230 | 2033 | 1.00 | 4 | -0.02 | 25 | -0.50 | |
|  Sadek, Sameh | | | 2302 | EGY | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Abdel Razik, Ahmed | | | 2101 | EGY | 1.00 | 1 | 0.59 | 25 | 14.75 | |  Ezat, Abdallah | | | 2287 | EGY | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Abdel Fadil, Mohamed | | | 2228 | EGY | 0.00 | 1 | -0.25 | 25 | -6.25 | |
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) | | | | Boys Under 16 | Cairo | EGY | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2081 | 2033 | 0.50 | 1 | 0.07 | 25 | 1.75 | |
| | Ameir, Moheb | | | 2081 | EGY | 0.50 | 1 | 0.07 | 25 | 1.75 | |
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) | | | | 1st Elsead Club | Cairo | EGY | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2074 | 2033 | 3.00 | 9 | -1.01 | 25 | -25.25 | |
| | Eldesoky, Hatem | | | 2254 | EGY | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Ezat, Abdallah | | | 2287 | EGY | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Ragaa, Hassan | | | 2099 | EGY | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Wagdy, Andro | f | | 1872 | EGY | 1.00 | 1 | 0.29 | 25 | 7.25 | | | Tork, Mohamed | | | 2204 | EGY | 0.00 | 1 | -0.27 | 25 | -6.75 | | | Hassan, Waleid Ahmed | | | 1775 | EGY | 1.00 | 1 | 0.18 | 25 | 4.50 | | | Ameir, Moheb | | | 2081 | EGY | 0.00 | 1 | -0.43 | 25 | -10.75 | | | Aly Ibrahim, Alaa | | | 2110 | EGY | 0.50 | 1 | 0.11 | 25 | 2.75 | | | Hussein, Ismail | | | 1986 | EGY | 0.00 | 1 | -0.57 | 25 | -14.25 | |
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) | | | NOTE: K factor changed | | 1st Sohag International Chess Tournament | Sohag | EGY | 2009-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2163 | 2033 | 3.00 | 5 | 1.27 | 15 | 19.05 | |
| | Mousa, Ahmed | | | 2230 | EGY | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Abadalla, Mohamed Kamel | | | 2021 | EGY | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Frhat, Ali | m | | 2383 | EGY | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Abo Nar, Mohamed | | | 2138 | EGY | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Seif Elnasr, Alaa | | | 2042 | EGY | 1.00 | 1 | 0.51 | 15 | 7.65 | |
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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