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Individual Calculations December 2019 |
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| Erfan, Ahmed Total change: -29.60 | |   |
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| Egyptian Ch. Open (Final) 2019 | Cairo | EGY | 2019-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1523 | 1688 | 2.00 | 4 | -0.74 | 40 | -29.60 | |
|  Metwally, Ahmed | | | 2026 | EGY | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Eldeeb, Mohamed | | | 1377 | EGY | 0.50 | 1 | -0.36 | 40 | -14.40 | |  Swilam, Mahmoud | | | 1399 | EGY | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Kandil, Jomana | | | 1288 * | EGY | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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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