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Individual Calculations October 2019 |
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| Erhabor, David Total change: 24.40 | |   |
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| 1st Richard Asibor Memorial Chess Festival | Lagos | NGR | 2019-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2024 | 2.00 | 3 | 0.94 | 20 | 18.80 | |
|  Osunfuyi , Abimbola | f | | 2250 | NGR | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Sasha, Winston - Onyiah | | | 2020 | NGR | 1.00 | 1 | 0.49 | 20 | 9.80 | |  Onokpite, Kennedy | | | 2141 | NGR | 1.00 | 1 | 0.66 | 20 | 13.20 | |
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) | | | | 1st UNIBEN CHESS OPENS | BENIN | NGR | 2019-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 2024 | 2.50 | 5 | 0.28 | 20 | 5.60 | |
| | Etukakpan, Leonard | | | 2164 | NGR | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Adesina, Adeyinka | f | | 2163 | NGR | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Ogosi, Raphael-Mary | | | 2042 | NGR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Onokpite, Kennedy | | | 2141 | NGR | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Okeke, Issac | | | 1797 | NGR | 1.00 | 1 | 0.21 | 20 | 4.20 | |
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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