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Individual Calculations April 2020 |
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| Vundla, Mthandazo Total change: -19.20 | |   |
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| Heidelberg Open (Prestige) | Heidelberg | RSA | 2020-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1844 | 1755 | 1.00 | 3 | -0.24 | 20 | -4.80 | |
|  Govender, Yaduvir | | | 1722 | RSA | 1.00 | 1 | 0.45 | 20 | 9.00 | |  Mnguni, Jacob Dumisani | | | 2130 | RSA | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Simpson, Michael | | | 1679 | RSA | 0.00 | 1 | -0.60 | 20 | -12.00 | |
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) | | | | 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1593 | 1755 | 2.00 | 4 | -0.72 | 20 | -14.40 | |
| | Bester, Carla | | | 1355 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Khumalo, Keith | c | | 2129 | RSA | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Reyneke, Pieter | | | 1355 * | RSA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Matras, Ivan | | | 1532 | RSA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | * 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) | | |
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