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Individual Calculations April 2019 |
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| Khumalo, Keith Total change: 15.20 | |   |
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| South African Junior Closed Chess Championships 2019 (u18 Open) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1697 | 2015 | 8.00 | 9 | 0.38 | 40 | 15.20 | |
|  Blomeyer, Chad | | | 1625 | RSA | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Du Plessis, Jan | | | 1615 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Nyathi, Musa | | | 1615 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Mazibuko, Khanya | c | | 1946 | RSA | 0.00 | 1 | -0.60 | 40 | -24.00 | | | Felix, Devon | | | 1627 | RSA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Richter, Jan-Michael | | | 1615 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Van Der Westhuizen, Donald | | | 1615 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Samuels, Ethan | | | 1900 | RSA | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Marais, Nina | | wc | 1712 | RSA | 1.00 | 1 | 0.14 | 40 | 5.60 | | | * 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) | | |
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