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Individual Calculations December 2013 |
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| Gahfer, Khaled Total change: 43.80 | |   |
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| 29th Libyan open championship(1st stage) | Toubrok | LBA | 2013-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2048 | 1735 | 2.00 | 4 | 1.46 | 30 | 43.80 | |
|  Mansour, Abdallah | | | 2070 | LBA | 1.00 | 1 | 0.88 | 30 | 26.40 | |  Aborezika, Mohamed | | | 2052 | LBA | 1.00 | 1 | 0.87 | 30 | 26.10 | | | El-Gehani, Ghassan | | | 2039 | LBA | 0.00 | 1 | -0.14 | 30 | -4.20 | | | Mahdia, Farage | | | 2029 | LBA | 0.00 | 1 | -0.15 | 30 | -4.50 | |
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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