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Individual Calculations April 2018 |
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| Booysen, Elda Total change: -23.60 | |   |
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| 2018 Waterkloof Open (A) | Pretoria | RSA | 2018-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1508 | 1429 | 1.00 | 4 | -0.59 | 40 | -23.60 | |
|  Matras, Ivan | | | 1687 | RSA | 0.00 | 1 | -0.18 | 40 | -7.20 | |  Odendaal, Ruben Lourens | | | 1160 | RSA | 0.50 | 1 | -0.33 | 40 | -13.20 | | | Du Plessis, Anika | | wm | 1660 | RSA | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Richter, Jan-Michael | | | 1524 | RSA | 0.00 | 1 | -0.37 | 40 | -14.80 | |
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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