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Individual Calculations April 2019 |
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| Bester, Carla Total change: 75.20 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1532 | 1171 | 2.00 | 5 | 1.44 | 40 | 57.60 | |
|  Nene, Themba | | | 1571 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Schoeman, Ewald | c | | 1571 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Van Heerden, Lara | | | 1376 | RSA | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Tapera, Uzeni | | | 1571 * | RSA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Bucceri, Draven | | | 1571 * | 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 (u16 Girls) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1275 | 1171 | 3.00 | 7 | 0.44 | 40 | 17.60 | |
| | Goncalves Dias, Amika | | | 1147 | RSA | 1.00 | 1 | 0.47 | 40 | 18.80 | | | Milford, Zoe Melissa | | | 1190 | RSA | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Jonker, Keola | | | 1200 | RSA | 1.00 | 1 | 0.54 | 40 | 21.60 | | | Booysen, Tineke | | | 1314 | RSA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Putter, Nicola | | wf | 1458 | RSA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Claassen, Anke | | wc | 1255 | RSA | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Shaw, Laurie Ann | | | 1362 | RSA | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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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