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Individual Calculations May 2019 |
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| Ameku, David Total change: 7.60 | |   |
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| Zone 4.4 Individual Chess Championships 2019 | Accra | GHA | 2019-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1978 | 1592 | 1.00 | 7 | 0.38 | 20 | 7.60 | |
|  Oragwu, Chukwunonso | c | | 1992 * | NGR | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Erhabor, David | f | | 1992 * | NGR | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Anquandah, Francis Eric | m | | 1992 * | GHA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Onovughe, Ochuko Emmanuel | f | | 1992 * | NGR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Oluwadara, Adegbayi | | | 1992 * | NGR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | James, Tondo | | | 1953 | LBR | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Atabor, Job | c | | 1934 | NGR | 0.00 | 1 | -0.12 | 20 | -2.40 | | | * 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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