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Individual Calculations April 2019 |
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| Cruywagen, Armand Total change: 111.20 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1758 | 1496 | 3.00 | 5 | 2.05 | 40 | 82.00 | |
|  Sikwati, Lizo | | | 1712 | RSA | 1.00 | 1 | 0.78 | 40 | 31.20 | |  Marais, Nina | | wc | 1712 | RSA | 1.00 | 1 | 0.78 | 40 | 31.20 | | | Zhemba, Jemusse | | | 1896 * | ZIM | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Nene, Themba | | | 1844 | RSA | 1.00 | 1 | 0.89 | 40 | 35.60 | | | Chueu, Calvin | | | 1628 | RSA | 0.00 | 1 | -0.32 | 40 | -12.80 | | | * 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) | | | | South African Junior Closed Chess Championships 2019 (u16 Open) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1630 | 1496 | 3.50 | 8 | 0.73 | 40 | 29.20 | |
| | Essa, Naseem Ahmed | f | | 1856 | RSA | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Thakersee, Rishay | c | | 1426 | RSA | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Schnabel, Johann Emil | c | | 1714 | RSA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Claassen, Jean-Daniel | | | 1481 | RSA | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Felix, Ethon | | | 1818 | RSA | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Mhango, Banele | c | | 1816 | RSA | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Dinham, James | | | 1565 | RSA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Louw, Carlo | | | 1367 | RSA | 0.00 | 1 | -0.67 | 40 | -26.80 | |
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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