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Individual Calculations November 2023 |
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| Onoja, Iyefu Joy Total change: 29.20 | |   |
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| SOUTH SOUTH OPEN CHESS TOURNAMENT | NMA BUILDING EAST WEST ROAD, PORTHARCOURT | NGR | 2023-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2082 | 1852 | 3.00 | 5 | 1.92 | 20 | 38.40 | |
|  Asingbi, Douye | | | 2032 | NGR | 1.00 | 1 | 0.74 | 20 | 14.80 | |  Eyetonghan, Denyefa Callistus | | | 2175 | NGR | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Emmanuel, Joy Idara | | | 2064 | NGR | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Afam, Ndidi Ernest | | | 2124 | NGR | 0.50 | 1 | 0.33 | 20 | 6.60 | | | Onyekwere, Macdonald | | | 2013 | NGR | 0.50 | 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) | | | | NIGERIA NATIONAL WOMEN CHESS CHAMPIONSHIP 2003 | Lekki, LAGOS | NGR | 2023-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1750 | 1852 | 6.50 | 11 | -0.46 | 20 | -9.20 | |
| | Diachavbe, Chemuete | | | 1741 | NGR | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Michael, Bridget | | | 1865 | NGR | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Olabisii, Elizabeth Oluwaseun | | | 1649 | NGR | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Suleiman, Azumi Ayisha | | | 1900 | NGR | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Nwankwo, Michelle Chiamaka | | | 1719 | NGR | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Nzeako, Chizoba Treasure | | | 1611 | NGR | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Oyelese, Mayomi Olayinka | | | 1683 | NGR | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Ofowino, Toritsemuwa | | | 1878 | NGR | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Amadasun, Rosemary | | | 1750 | NGR | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Erhabor, Joy Felix | | | 1698 | NGR | 0.50 | 1 | -0.21 | 20 | -4.20 | | | Quickpen, Deborah Ebimobo-Ere | | | 1755 | NGR | 0.00 | 1 | -0.63 | 20 | -12.60 | |
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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