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Individual Calculations March 2019 |
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| Erhouma, Ezzdeen Total change: 58.20 | |   |
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| Arab Cities Chess Championship | Hammamet | TUN | 2019-02-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1995 | 1666 | 1.50 | 6 | 0.62 | 20 | 12.40 | |
|  Salman, Saleh | | | 2064 | YEM | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Ben Younes, Mohamed | | | 1717 | TUN | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Bensadi, Lotfi | | | 2009 | ALG | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Mohamed, Nouali | f | | 2050 | TUN | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Al Ghamdi, Ahmed M | c | | 2066 * | KSA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Talbi, Chafik | f | | 2066 * | ALG | 1.00 | 1 | 0.92 | 20 | 18.40 | | | * 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) | | | | Final Libyan Cities 2019 | Misrata | LBA | 2019-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1702 | 1666 | 4.50 | 5 | 2.29 | 20 | 45.80 | |
| | Sultan, Ahmed Faraj | | | 1851 | LBA | 1.00 | 1 | 0.74 | 20 | 14.80 | | | Husain, Salah Moftah | | | 1363 | LBA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Eihab, Fath Ali | | | 1703 | LBA | 1.00 | 1 | 0.55 | 20 | 11.00 | | | Fakron, Ramadan | | | 1799 | LBA | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Elfelo, Ali | | | 1796 | LBA | 1.00 | 1 | 0.68 | 20 | 13.60 | |
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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