| 1729.3 | 1735.4 | 28 | 28 | Klaasen, RJ (Robyn Julian) | WNM | WCT | 1744.4 | 1751 | 2026 South African Closed Chess Championships (Woman ) | 8 | 2026-02-26 | S | B | 0 | 0.44 | -0.44 | -12.3 | 0.44 | -0.44 | -12.3 |
| 1586.9 | 1596.9 | 20 | 20 | Klaasen, RJ (Robyn) | | WCT | 1670.7 | 1677 | Western Cape Women’s Championship 2024 (Elite) | 2 | 2024-08-09 | S | B | 0 | 0.36 | -0.36 | -7.2 | 0.36 | -0.36 | -7.2 |
| 1590.8 | 1604.5 | 20 | 20 | Klaasen, RJ (Robyn) | | WCT | 1605.5 | 1614.3 | South African Closed Chess Championship 2024 (Ladies) | 11 | 2024-04-02 | S | B | 0.5 | 0.44 | 0.06 | 1.2 | 0.45 | 0.05 | 1 |
| 1593.5 | 1590 | 20 | 20 | Klaasen, RJ (Robyn) | | WCT | 1689.4 | 1690.5 | 2022 South African Closed Chess Championships (Women) | 2 | 2022-05-09 | S | B | 1 | 0.35 | 0.65 | 13 | 0.34 | 0.66 | 13.2 |
| 1538.1 | 1534.2 | 20 | 20 | Klaasen, RJ (Robyn) | | WCT | 1685.1 | 1705.7 | 2019 South African Closed Chess Championships (Women A) | 4 | 2019-12-10 | S | B | 0 | 0.29 | -0.29 | -5.8 | 0.26 | -0.26 | -5.2 |
| 1482 | 1482 | 20 | 20 | Van Niekerk, Rj (Robyn) | | WP | 1578 | 1578 | 2017 South African Closed Chess Championships (Women) | 2 | 2017-12-10 | S | B | 1 | 0.37 | 0.63 | 12.6 | 0.63 | 0.37 | 7.4 |
| 1528 | 1528 | 20 | 20 | Van Niekerk, Rj (Robyn) | | WP | 1626 | 1626 | South African Junior Closed 2014 U18 20 Girls | 11 | 2014-04-05 | S | W | 0.5 | 0.37 | 0.13 | 2.6 | 0.13 | 0.37 | 7.4 |
| 1584 | 1584 | 20 | 20 | Van Niekerk, Rj (Robyn) | | WP | 1575 | 1575 | South African Closed 2014 (Women A) | 9 | 2014-01-11 | S | B | 0 | 0.51 | -0.51 | -10.2 | -0.51 | 0.51 | 10.2 |
| 1495 | 1495 | 20 | 20 | Van Niekerk, Rj (Robyn) | | WP | 1517 | 1517 | South African Junior Closed 2013 U18 U 20 Girls | 8 | 2013-04-05 | S | W | 0 | 0.47 | -0.47 | -9.4 | -0.47 | 0.47 | 9.4 |
