| 1446.8 | 1444.7 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1514.8 | 1501 | 2024 Mid Gauteng Open Chess Tournament (U14) | 4 | 2024-05-02 | S | B | 0 | 0.38 | -0.38 | -6.3 | 0.39 | -0.39 | -7.8 |
| 1383.1 | 1371 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1423.9 | 1410.2 | 2019 Waterkloof Open (D) | 5 | 2019-03-03 | S | B | 0 | 0.41 | -0.41 | -7.7 | 0.41 | -0.41 | -8.2 |
| 1386 | 1373.9 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1483 | 1472.1 | 2019 Tshwane Chess Registration Tournament (E) | 5 | 2019-01-26 | S | B | 0 | 0.35 | -0.35 | -5.8 | 0.34 | -0.34 | -6.8 |
| 1216.7 | 1199.5 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1199.5 | 1187.6 | 2018 Gauteng North Open (E) | 1 | 2018-10-20 | S | B | 1 | 0.48 | 0.52 | 9.8 | 0.47 | 0.53 | 10.6 |
| 1171.5 | 1163.9 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1140 | 1120.2 | 2018 Mid Gauteng Open (D) | 2 | 2018-08-18 | S | W | 0 | 0.58 | -0.58 | -9.6 | 0.59 | -0.59 | -11.8 |
| 1212.4 | 1212.8 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1200 | 1200 | 2018 Swartkop Open (F) | 5 | 2018-06-23 | S | W | 0.5 | 0.56 | -0.06 | -1 | 0.56 | -0.06 | -1.2 |
