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Individual Calculations April 2018 |
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| Wolmarans, Riekie Total change: 22.00 | |   |
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| 2018 Waterkloof Open (A) | Pretoria | RSA | 2018-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1521 | 1348 | 2.00 | 5 | 0.55 | 40 | 22.00 | |
|  Du Plessis, Anika | | wm | 1660 | RSA | 0.50 | 1 | 0.36 | 40 | 14.40 | |  Richter, Jan-Michael | | | 1524 | RSA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Lubbe, David Stefanus | | | 1302 | RSA | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Dykema, Dirkho | | | 1480 | RSA | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Booysen, Antonio | | | 1638 | RSA | 0.00 | 1 | -0.16 | 40 | -6.40 | |
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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