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Individual Calculations September 2018 |
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| Mbao, James Jimmy Total change: 20.80 | |   |
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| 2018 Zambia Open Chess Championships - Main Section | Lusaka | ZAM | 2018-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1967 | 1837 | 1.50 | 3 | 0.52 | 40 | 20.80 | |
|  Simwinga, Chishinga | | | 1884 | ZAM | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Monnaatsheko, Keletshabile | | | 2021 | BOT | 1.00 | 1 | 0.74 | 40 | 29.60 | |  Mpanga, Kasao | | | 1995 | ZAM | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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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