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Individual Calculations January 2024 |
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| Mankga, Thabang Total change: -49.80 | |   |
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| Africawide Chess Championship 2023 (Open) | Johannesburg | RSA | 2023-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1490 | 1648 | 2.50 | 5 | -0.81 | 20 | -16.20 | |
|  Jaitas, Worapat | | | 1231 | RSA | 1.00 | 1 | 0.07 | 20 | 1.40 | |  Segal, Jamie Dylan | | | 1248 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ikageng, Mabengane | | | 1748 | BOT | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Teeke, Karabo | | | 1721 | RSA | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Lukhwareni, Nkhumbuleni | | | 1502 | RSA | 0.00 | 1 | -0.70 | 20 | -14.00 | | | * 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) | | | | 2023 USSA Championships (Open) | Durban | RSA | 2023-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1506 | 1648 | 2.50 | 6 | -1.50 | 20 | -30.00 | |
| | Msimango, Senzo | | | 1536 | RSA | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Martin, Nico | | | 1861 | RSA | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Martin, Tim | | | 1248 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mthembu, Lovers | | | 1575 | RSA | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Ndwambi, Talifhani | | | 1404 | RSA | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Nieuwoudt, Dawid | | | 1412 | RSA | 0.00 | 1 | -0.80 | 20 | -16.00 | | | * 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) | | | | Cross Border Regional Chess Championship 2023 Prestige-Section | Gaborone | BOT | 2023-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1699 | 1648 | 2.00 | 5 | -0.18 | 20 | -3.60 | |
| | Sebetlela, Gaasite | | | 1896 | BOT | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Kitso, Innocent Kgosietsile | | | 1624 | BOT | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Selogelo, Othata | | | 1739 | BOT | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Blessings, Motshabi | | | 1565 | BOT | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Banda, Natalie Katlo | | wc | 1670 | BOT | 0.50 | 1 | 0.03 | 20 | 0.60 | |
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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