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Individual Calculations March 2018 |
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| Issa, Rafat Total change: 1.00 | |   |
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| Arab Individual Chess Championship 2017(Open) | Sharjah | UAE | 2018-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2329 | 2379 | 6.00 | 9 | 0.98 | 10 | 9.80 | |
|  Alothman, Abdul Wahab | c | | 2018 | KUW | 1.00 | 1 | 0.10 | 10 | 1.00 | |  Arab, Adlane | m | | 2477 | ALG | 0.50 | 1 | 0.13 | 10 | 1.30 | | | El Jawich, Amro | f | | 2241 | LBN | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Hesham, Abdelrahman | g | | 2406 | EGY | 1.00 | 1 | 0.54 | 10 | 5.40 | | | Omar, Noaman | m | | 2364 | UAE | 0.50 | 1 | -0.02 | 10 | -0.20 | | | Labib, Ibrahim Hasan | m | | 2412 | EGY | 0.00 | 1 | -0.45 | 10 | -4.50 | | | Tagelsir , Abubaker | f | | 2232 | SUD | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Haddouche, Mohamed | g | | 2505 | ALG | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Alhuwar, Jasem | f | | 2303 | UAE | 1.00 | 1 | 0.40 | 10 | 4.00 | |
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) | | | | Arab Chess Club Cup 2017 | Sharjah | UAE | 2018-02-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2087 | 2379 | 4.00 | 6 | -0.88 | 10 | -8.80 | |
| | Ali, Abdulaziz | | | 1979 * | UAE | 0.00 | 1 | -0.92 | 10 | -9.20 | | | Al Jowder, Isa | | | 1979 * | BRN | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Boshara, Mohammed Ahmed | | | 1979 * | SUD | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Belouadah, Saad | m | | 2404 | ALG | 0.00 | 1 | -0.47 | 10 | -4.70 | | | Mohammed, Ahmed Said Al Amri | | | 1979 * | OMA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Al-Zayat, Ahmed | f | | 2204 | LBA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | * 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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