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Individual Calculations October 2019 |
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| Okonkwo, Ifeanyi Total change: -33.20 | |   |
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| 1st Richard Asibor Memorial Chess Festival Under 2000 | Lagos | NGR | 2019-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1726 | 2036 | 2.50 | 3 | -0.04 | 40 | -1.60 | |
|  Abimbola, Kalesanwo | | | 1636 * | NGR | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Mafoitan, Oladipupo | | | 1881 | NGR | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Uche, Enunwa | | | 1661 | NGR | 1.00 | 1 | 0.09 | 40 | 3.60 | | | * 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) | | | NOTE: K factor changed | | 1st UNIBEN CHESS OPENS | BENIN | NGR | 2019-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2036 | 0.00 | 3 | -1.58 | 20 | -31.60 | |
| | Balogun, Oluwafemi | m | | 2292 | NGR | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Nwala, Emmanuel | | | 1974 | NGR | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Okeke, Issac | | | 1797 | NGR | 0.00 | 1 | -0.80 | 20 | -16.00 | |
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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