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Individual Calculations April 2019 |
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| Claassen, Gabriella Total change: 14.00 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1516 | 1161 | 0.00 | 4 | -0.44 | 40 | -17.60 | |
|  Nhamuave, Eleazar | | | 1561 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Naidoo, Tashil | | | 1467 | RSA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Tissot Van Patot, Anton | | | 1474 | RSA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Dykema, Dirkho | | | 1561 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | South African Junior Closed Chess Championships 2019 (u14 Girls) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1205 | 1161 | 3.00 | 5 | 0.79 | 40 | 31.60 | |
| | Joubert, Natasha | | wc | 1258 | RSA | 1.00 | 1 | 0.63 | 40 | 25.20 | | | Wang, Pei-Shan | | | 1027 | RSA | 1.00 | 1 | 0.32 | 40 | 12.80 | | | De Villiers, Anri | | | 1360 | RSA | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Ismail, Imaan | | wc | 1146 | RSA | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Stuurman, Aliche | | | 1234 | RSA | 0.00 | 1 | -0.40 | 40 | -16.00 | |
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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