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Individual Calculations January 2024 |
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| Dinham, James Total change: -12.20 | |   |
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| Africawide Chess Championship 2023 (Prestige) | Johannesburg | RSA | 2023-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 1928 | 3.50 | 7 | 0.59 | 20 | 11.80 | |
|  Mabusela, Johannes Manyedi | m | | 2182 | RSA | 0.00 | 1 | -0.19 | 20 | -3.80 | |  Makhushini, Moses J | | | 1822 | RSA | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Bayani, Kuda | | | 1942 | BOT | 1.00 | 1 | 0.52 | 20 | 10.40 | | | Mailula, Matsobane | | | 1879 | RSA | 1.00 | 1 | 0.43 | 20 | 8.60 | | | Khumalo, Keith | c | | 2049 | RSA | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Xulu, Lindokuhle | | | 1917 | RSA | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Oatlhotse, Providence | m | | 2204 | BOT | 0.00 | 1 | -0.17 | 20 | -3.40 | |
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) | | | | 2023 USSA Championships (Open) | Durban | RSA | 2023-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1604 | 1928 | 4.50 | 7 | -1.47 | 20 | -29.40 | |
| | Shoba, Lundi | | | 1618 | RSA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Tokoyi, Romeo | | | 1413 | RSA | 1.00 | 1 | 0.04 | 20 | 0.80 | | | Mthembu, Lovers | | | 1575 | RSA | 0.00 | 1 | -0.89 | 20 | -17.80 | | | Tlamama, Tshepang | | | 1528 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Selepe, Lwazi | | | 1813 | RSA | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Windvogel, Monray | | | 1639 | RSA | 0.00 | 1 | -0.84 | 20 | -16.80 | | | Bezuidenhout, Lian | | | 1639 | RSA | 0.50 | 1 | -0.34 | 20 | -6.80 | | | * 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 |
| 1723 | 1928 | 4.00 | 5 | 0.27 | 20 | 5.40 | |
| | Kitso, Innocent Kgosietsile | | | 1624 | BOT | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Moagaesi, Tshepo | | | 1792 | BOT | 0.00 | 1 | -0.68 | 20 | -13.60 | | | Sebetlela, Gaasite | | | 1896 | BOT | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Selogelo, Othata | | | 1739 | BOT | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Blessings, Motshabi | | | 1565 | BOT | 1.00 | 1 | 0.10 | 20 | 2.00 | |
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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