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Individual Calculations January 2020 |
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| Wael Sabry, Mina Total change: 15.20 | |   |
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| Golden Cleopatra 2019 | Cairo | EGY | 2019-12-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1794 | 1434 | 0.50 | 3 | 0.18 | 40 | 7.20 | |
|  Ibrahim, Begad | | | 1834 * | EGY | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Ghareeb, Mohamed Reda | | | 1713 | EGY | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Elhoseiny, Mosaad | | | 1834 * | EGY | 0.00 | 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) | | | | 2019 African Youth Chess Championship (Under 10 Open) | Windhoek | NAM | 2019-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1364 | 1434 | 2.50 | 4 | 0.20 | 40 | 8.00 | |
| | Alguttani, Faraj Adel | | | 1431 | LBA | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Fates, Omer Salah | | | 1438 | LBA | 1.00 | 1 | 0.51 | 40 | 20.40 | | | George Micheal, Kevin | | | 1487 | EGY | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Felix, Raphael | | | 1098 | RSA | 0.50 | 1 | -0.38 | 40 | -15.20 | |
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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