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Individual Calculations April 2009 |
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| Ameir, Moheb Total change: 10.35 | |   |
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| 11th Mahalla Open | Mahalla | EGY | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2229 | 2081 | 0.00 | 2 | -0.61 | 15 | -9.15 | |
|  Atea, Khaled | | | 2183 | EGY | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Yousry, Salah | | | 2274 | EGY | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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 16 | Cairo | EGY | 2009-02-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2081 | 2.50 | 3 | 0.66 | 15 | 9.90 | |
| | Abdel Hameid, Mohsen | | | 1945 | EGY | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Nader, Mohamed | | | 2033 | EGY | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Mona, Khaled | | wg | 2016 | EGY | 1.00 | 1 | 0.41 | 15 | 6.15 | |
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 |
| 2115 | 2081 | 4.50 | 9 | 0.47 | 15 | 7.05 | |
| | Sameeh, Hany | f | | 2270 | EGY | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Yousry, Salah | | | 2274 | EGY | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Imam, Ashraf | | | 2106 | EGY | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Naby, Saiid A. | | | 2289 | EGY | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Sobh, Amrou | | | 2180 | EGY | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Abdel Hafeiz, Ayman | | | 1975 | EGY | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Nader, Mohamed | | | 2033 | EGY | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Magdy, Ahmed | | | 1731 | EGY | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Abdel Rahman, Alla | | | 2174 | EGY | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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 Sohag International Chess Tournament | Sohag | EGY | 2009-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2213 | 2081 | 1.50 | 4 | 0.17 | 15 | 2.55 | |
| | Amin, Ashraf | | | 2315 | EGY | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Mousa, Ahmed | | | 2230 | EGY | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Ezat, Abdallah | | | 2287 | EGY | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Abadalla, Mohamed Kamel | | | 2021 | EGY | 1.00 | 1 | 0.42 | 15 | 6.30 | |
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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