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Individual Calculations August 2019 |
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| Ameku, David Total change: 26.20 | |   |
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| 9th President's Cup Chess Championships | Accra | GHA | 2019-07-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 1620 | 0.00 | 1 | -0.15 | 20 | -3.00 | |
|  Adu Jnr, Lionel | c | | 1919 | GHA | 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) | | | | 4th Dreamfort Chess Tournament | Accra | GHA | 2019-07-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1737 | 1620 | 4.00 | 7 | 1.46 | 20 | 29.20 | |
| | Mensah, Joseph Jamena | c | | 1978 | GHA | 0.00 | 1 | -0.10 | 20 | -2.00 | |  Ajavon, Anthony Obieni | c | | 1880 | GHA | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Arko-Dadzie, George Kweku | | | 1521 | GHA | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Kokoti, Perez | | | 1593 | GHA | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Adanu, Richard Kofi Mawuena | | | 1547 | GHA | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Gabah, Richard | | | 1831 | GHA | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Thompson, Edward Nii Lamptey | c | | 1812 | GHA | 1.00 | 1 | 0.75 | 20 | 15.00 | |
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) | | |
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