| 1657.2 | 1661.5 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1752.3 | 1751.6 | 2026 Tshwane Chess Registration Tournament (A) | 4 | 2026-01-31 | S | W | 0 | 0.43 | -0.43 | -7.1 | 0.44 | -0.44 | -8.8 |
| 1448.4 | 1444.6 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1607.8 | 1603 | 2024 Piet Robbertse Open Chess Tournament (B) | 2 | 2024-02-03 | S | B | 0.5 | 0.27 | 0.23 | 4.3 | 0.27 | 0.23 | 4.6 |
| 1380.8 | 1386.4 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1393.8 | 1419 | 2022 Etienne Lewis (U12 Open) | 5 | 2022-09-04 | S | W | 0 | 0.53 | -0.53 | -10 | 0.5 | -0.5 | -10 |
| 1273.6 | 1260.8 | 20 | 20 | Slabbert, ZN (Zander Nicolaas) | | GTP | 1353.9 | 1335 | 2021 Lubowski Open Tournament (C) | 2 | 2021-05-01 | S | B | 0 | 0.36 | -0.36 | -6.8 | 0.37 | -0.37 | -7.4 |
