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Rapid:
Individual Calculations August 2018 |
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| Chukwuemeka-Ehirim, , Chinyere Total change: -21.20 | |   |
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| Chess Heights Southwest June 2018 | Lagos | NGR | 2018-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1839 | 0.00 | 2 | -0.70 | 20 | -14.00 | |
|  Onyema , Ugochukwu | | | 2006 | NGR | 0.00 | 1 | -0.28 | 20 | -5.60 | |  Assa, ,oluwaseun | | | 1897 | NGR | 0.00 | 1 | -0.42 | 20 | -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) | | | | Chess Heights Southwest July 2018 | Lagos | NGR | 2018-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1916 | 1839 | 0.50 | 2 | -0.36 | 20 | -7.20 | |
| | Okeke, Issac | | | 1654 | NGR | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Abdulraheem , Abdulrahman Akintoy | | | 2177 | NGR | 0.00 | 1 | -0.12 | 20 | -2.40 | |
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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