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Individual Calculations April 2019 |
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| Naidoo, Tashil Total change: -30.40 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1450 | 1467 | 2.50 | 5 | -0.06 | 40 | -2.40 | |
|  Mthunzi, Brighton | | | 1867 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Claassen, Gabriella | | | 1161 | RSA | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Smit, Devon | | | 1530 | RSA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Govender, Yaduvir | | | 1627 | RSA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Levitan, Judah Nathan | | | 1067 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | * 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 |
| 1509 | 1467 | 3.00 | 8 | -0.70 | 40 | -28.00 | |
| | Vorster, Tyrone | | | 1201 | RSA | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Felix, Ethon | | | 1818 | RSA | 0.50 | 1 | 0.39 | 40 | 15.60 | | | Govender, Yaduvir | | | 1627 | RSA | 1.00 | 1 | 0.71 | 40 | 28.40 | | | Essa, Naseem Ahmed | f | | 1856 | RSA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Dinham, James | | | 1565 | RSA | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Hlongwane, Blessing | | | 1363 | RSA | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Mazibuko, Buhle | | | 1390 | RSA | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Maharaj, Ajeet | | | 1254 | RSA | 0.50 | 1 | -0.27 | 40 | -10.80 | |
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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