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Individual Calculations April 2019 |
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| Mazibuko, Khanya Total change: 16.40 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1735 | 1946 | 4.00 | 5 | 0.33 | 40 | 13.20 | |
|  Baloyi, Sipho | | | 1596 | RSA | 1.00 | 1 | 0.11 | 40 | 4.40 | |  Chueu, Calvin | | | 1628 | RSA | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Mabusela, Johannes Manyedi | m | | 2249 | RSA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Fourie, Brandon | | | 1546 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Nhamuave, Eleazar | | | 1654 | RSA | 1.00 | 1 | 0.15 | 40 | 6.00 | | | * 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 (u18 Open) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1661 | 1946 | 6.50 | 8 | 0.08 | 40 | 3.20 | |
| | Jack, Azile | | | 1546 * | RSA | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Naicker, Sheldon | | | 1546 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Khumalo, Keith | | | 2015 | RSA | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Van Der Westhuizen, Donald | | | 1582 | RSA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Samuels, Ethan | | | 1900 | RSA | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Du Plessis, Jan | | | 1546 * | RSA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Rogge, Conrad | | | 1590 | RSA | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Richter, Jan-Michael | | | 1559 | RSA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | * 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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