| 1614.4 | 1609.5 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1603.6 | 1619.2 | 2025 Menlo Open (U14) | 4 | 2025-07-26 | S | B | 0 | 0.47 | -0.47 | -7.8 | 0.45 | -0.45 | -9 |
| 1483.4 | 1474.9 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1469.7 | 1520.3 | 2024 Tshwane Chess OPEN Registration Tournament (B) | 5 | 2024-01-27 | S | W | 0.5 | 0.56 | -0.06 | -1 | 0.49 | 0.01 | 0.2 |
| 1512.6 | 1509.5 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1513.4 | 1544.4 | Lardies Open Tournament 2023 (B) | 4 | 2023-10-28 | S | W | 0 | 0.54 | -0.54 | -9 | 0.5 | -0.5 | -10 |
| 1480.6 | 1473.2 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1542.5 | 1586.9 | 2023 Etienne Lewis Closed Tournament (U12) | 7 | 2023-08-27 | S | W | 0.5 | 0.47 | 0.03 | 0.6 | 0.41 | 0.09 | 1.8 |
| 1456.7 | 1444.6 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1502.9 | 1496.6 | Gauteng Schools Individual Finals 2023 (U11 Boys) | 5 | 2023-05-26 | S | B | 0 | 0.4 | -0.4 | -6.6 | 0.4 | -0.4 | -8 |
| 1365.6 | 1386.5 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1323 | 1373.1 | 2022 Etienne Lewis (U10 Open) | 7 | 2022-09-04 | S | W | 1 | 0.59 | 0.41 | 7.7 | 0.56 | 0.44 | 8.8 |
| 1281 | 1294.3 | 20 | 20 | Van Der Westhuizen, L (Lihan) | | GTP | 1314.2 | 1375.6 | 2022 Alekhine Open (E) | 5 | 2022-08-13 | S | B | 1 | 0.42 | 0.58 | 10.9 | 0.36 | 0.64 | 12.8 |
