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Individual Calculations January 2019 |
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| Chumfwa, Kelvin Total change: 0.80 | |   |
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| Bank of Zambia Christmas Open Chess Tournament | Ndola | ZAM | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1909 | 2200 | 5.00 | 6 | 0.04 | 20 | 0.80 | |
|  Nosiku, Muyunda | | | 1930 | ZAM | 0.00 | 1 | -0.83 | 20 | -16.60 | |  Lyapa , Chisha | | | 1858 | ZAM | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Ngambi, Victor | | | 1800 * | ZAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kalandanya, Solomon | | | 1925 | ZAM | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Bwalya Mulwale, Lubuuto | | wc | 1800 * | ZAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kaulule Siame, Kela | | | 2139 | ZAM | 1.00 | 1 | 0.42 | 20 | 8.40 | | | * 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) | | |
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