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Individual Calculations June 2017 |
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| Al-Zayat, Ahmed Total change: -17.40 | |   |
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| African Zonal 4.1 Open | Algiers | ALG | 2017-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2146 | 2221 | 4.50 | 9 | -0.87 | 20 | -17.40 | |
|  Salhi, Nouressadat | | | 1993 | ALG | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Boudriga, Med Ali | m | | 2351 | TUN | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Taieb, Sahbi | | | 2065 | TUN | 0.00 | 1 | -0.71 | 20 | -14.20 | | | Mahdia, Farage | c | | 2002 | LBA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Bouzidi, Ahmed | c | | 2219 | TUN | 1.00 | 1 | 0.50 | 20 | 10.00 | | | Chahrani, Ibrahim | f | | 2224 | LBA | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Azaiez, Fahmi | | | 2145 | TUN | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Douissa, Oussama | | | 2236 | TUN | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Ounas, Abdelhak | | | 2083 | ALG | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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