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Individual Calculations February 2015 |
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| Meftahi, Houssem Total change: 45.40 | |   |
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| Championnat National par Equipe A 2014 Round 1-5 | Tunis | TUN | 2014-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2315 | 2057 | 0.50 | 2 | 0.13 | 20 | 2.60 | |
|  Boudriga, Med Ali | f | | 2280 | TUN | 0.50 | 1 | 0.28 | 20 | 5.60 | |  Amdouni, Zoubaier | f | | 2350 | TUN | 0.00 | 1 | -0.15 | 20 | -3.00 | |
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) | | | | Championnat National par Equipe A 2014 Round 6-7 | Tunis | TUN | 2014-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1930 | 2031 | 0.50 | 1 | -0.14 | 20 | -2.80 | |
| | Charfeddine, Akrem | | | 1930 | TUN | 0.50 | 1 | -0.14 | 20 | -2.80 | |
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) | | | | Championnat National par Equipe A 2014 Round 8-9 | Tunis | TUN | 2014-12-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 2031 | 0.50 | 1 | 0.25 | 20 | 5.00 | |
| | Bouflija, Hedi | | | 2220 | TUN | 0.50 | 1 | 0.25 | 20 | 5.00 | |
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) | | | | Arab Youth Chess CH. (Open U20) | Abu Dhabi | UAE | 2015-01-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 2026 | 5.50 | 7 | 2.03 | 20 | 40.60 | |
| | Bukhalaf, Hussain | | | 1823 | BRN | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Chahrour, Ibrahim | f | | 2259 | LIB | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Nader, Mohamed | m | | 2099 | EGY | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Ahmad, Al Khatib | | | 2160 | JOR | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Sattar, Abody | | | 1909 | IRQ | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Zayan, Mohamed | f | | 2232 | EGY | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Al Zarooni, Ahmed | | | 1693 | UAE | 1.00 | 1 | 0.12 | 20 | 2.40 | |
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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