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Individual Calculations September 2018 |
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| Leffad , Samy Total change: 67.20 | |   |
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| Juniors Championship 2018 Open | Bejai | ALG | 2018-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1663 | 1709 | 6.00 | 9 | 1.10 | 40 | 44.00 | |
|  Brahimi, Abderahim | c | | 1309 * | ALG | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Alioueche, Kerboua Louay | | | 1309 * | ALG | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Araoun, Saadi | c | | 2023 | ALG | 0.50 | 1 | 0.36 | 40 | 14.40 | | | Zane, Rayane | | | 1658 | ALG | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Benkolli, Adel | | | 1389 | ALG | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Yettouche, Yaristan | c | | 1470 | ALG | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Boulrens, Ala Eddine | | | 1943 | ALG | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Benrekia, Akram | | | 1817 | ALG | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Nassr, Ahmed | m | | 2052 | ALG | 0.50 | 1 | 0.38 | 40 | 15.20 | | | * 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) | | | | 2018 African Youth Chess Championships - Under 16 Boys | Kisumu City | KEN | 2018-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1657 | 1709 | 4.50 | 7 | 0.58 | 40 | 23.20 | |
| | Brahami, Lamine | f | | 1940 | ALG | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Mwabu, Timothy | | | 1630 | KEN | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Mhango, Banele | c | | 1777 | RSA | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Amin, Khaled Mohamed | | | 1927 | EGY | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Emanuel, Mutuna | | | 1503 | ZAM | 0.00 | 1 | -0.76 | 40 | -30.40 | | | Charles, Cleophas | | | 1393 | TAN | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Gurirab, Kevin N | | | 1426 | NAM | 1.00 | 1 | 0.16 | 40 | 6.40 | |
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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