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Individual Calculations July 2010 |
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| Zayan, Osama Total change: 39.90 | |   |
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| Egyptian League 2009/2010 Final Stage | Many Cities | EGY | 2010-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2198 | 2174 | 1.50 | 4 | -0.38 | 15 | -5.70 | |
|  Salah, Ahmed As | | | 2104 | EGY | 0.50 | 1 | -0.10 | 15 | -1.50 | |  Shalaby, Ahmed | | | 2120 | EGY | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Mokhtar, Ahmed | | | 2297 | EGY | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Ismail, Hamed | | | 2269 | 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) | | | | 2nd Heliopolis International Open | Cairo | EGY | 2010-05-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2270 | 2183 | 6.50 | 9 | 3.04 | 15 | 45.60 | |
| | Nagdy, Wael | | | 1943 | EGY | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Sadek, Sameh | | | 2342 | EGY | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Eldardery, Alaa | | | 2233 | EGY | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Ibrahim, Hatim | | | 2332 | EGY | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Sarwat, Walaa | m | | 2382 | EGY | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Adnani, Moklis | f | | 2356 | MAR | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Ismail, Reda | | | 2183 | EGY | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Kamel, Mahmoud | | | 2217 | EGY | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Ezat, Mohamed | m | | 2446 | EGY | 1.00 | 1 | 0.82 | 15 | 12.30 | |
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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