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Individual Calculations December 2018 |
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| Najjar, Seif Total change: 69.60 | |   |
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| Arab Chess Individual Championship 2018 U12 Open | Hammamet | TUN | 2018-10-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1462 | 1382 | 5.00 | 8 | 1.74 | 40 | 69.60 | |
|  Khalifah, Khaled | c | | 1749 | UAE | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Mohammad, Alhadidi | | | 1200 | JOR | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Boulaares, Akram | | | 1405 | TUN | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Aissani, Fethallah | | | 1350 | ALG | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Benyahia, Safin | c | | 1415 | ALG | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Chaoui, Rayane | | | 1618 | MAR | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Bidi, Abdeljalil | | | 1337 | ALG | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Ali, Firas Qassim | | | 1618 | IRQ | 1.00 | 1 | 0.80 | 40 | 32.00 | |
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) | | |
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