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Individual Calculations January 2019 |
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| Marais, Nina Total change: 72.40 | |   |
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| 2018 South African Junion Chess Championships (u18A) | Boksburg | RSA | 2018-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1610 | 1626 | 5.00 | 6 | 1.81 | 40 | 72.40 | |
|  Vester, Jordan | | | 1830 | RSA | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Fibiger, Jethro Nathanael | | | 1484 | RSA | 0.50 | 1 | -0.19 | 40 | -7.60 | |  Du Plessis, Jan | | | 1377 | RSA | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Nyathi, Musa | | | 1518 | RSA | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Khumalo, Keith | | | 1941 | RSA | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Millard, Chad | | | 1509 | RSA | 0.50 | 1 | -0.16 | 40 | -6.40 | |
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) | | |
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