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Individual Calculations April 2018 |
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| Marais, Nina Total change: -83.60 | |   |
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| 2018 Waterkloof Open (A) | Pretoria | RSA | 2018-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1432 | 1660 | 1.00 | 4 | -2.09 | 40 | -83.60 | |
|  Cruywagen, Dewan | | | 1361 | RSA | 0.00 | 1 | -0.85 | 40 | -34.00 | |  Marais, Dawid Jacobus | | | 1347 | RSA | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Grobbelaar, Jacqui | | | 1608 | RSA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Cruywagen, Armand | | | 1413 | RSA | 0.00 | 1 | -0.81 | 40 | -32.40 | |
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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