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Individual Calculations April 2020 |
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| Grobbelaar-Oertel, Jacqui Total change: 1.00 | |   |
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| 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1559 | 1540 | 2.00 | 4 | 0.05 | 20 | 1.00 | |
|  Mlahleki, Vusimuzi | | | 1940 * | RSA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Bout, Wanda | | | 1177 | RSA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Bester, Carla | | | 1269 | RSA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Wasserman, Johan F. | | | 1851 | RSA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | * 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) | | |
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