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Individual Calculations April 2020 |
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| Lesbros, Bernard Total change: -7.60 | |   |
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| Zonal 4.2 Open Chess individual championship 2020 | Freetown | SLE | 2020-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1977 | 1936 | 1.00 | 3 | -0.38 | 20 | -7.60 | |
|  Oragwu, Chukwunonso | f | | 2230 | NGR | 0.00 | 1 | -0.15 | 20 | -3.00 | |  Winston Gerald, Mansfield Thomas | | | 1799 | SLE | 1.00 | 1 | 0.32 | 20 | 6.40 | | | James, Tondo | | | 1903 | LBR | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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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