| 1612 | 1588.7 | 20 | 20 | Van Der Merwe, S (Schalk Wolf) | JM | WCT | 1753.5 | 1748.9 | CT Metro North Schools Chess Individual Trials 2026 (U11 Boys) | 5 | 2026-02-08 | S | B | 0 | 0.29 | -0.29 | -4.8 | 0.27 | -0.27 | -5.4 |
| 1371 | 1389.8 | 20 | 20 | Van Der Merwe, S (Schalk Wolf) | | WCT | 1642.7 | 1722.5 | Cape of Good Hope Open 2025 (U10) | 3 | 2025-02-22 | R | B | 0 | 0.14 | -0.14 | -1.5 | 0.07 | -0.07 | -1.4 |
| 1348.1 | 1353.2 | 20 | 20 | Van Der Merwe, S (Schalk Wolf) | | WCT | 1546.4 | 1656 | UCT Open Chess Championship 2024 (U10) | 3 | 2024-10-12 | R | W | 0 | 0.31 | -0.31 | -3.3 | 0.19 | -0.19 | -3.8 |
| 1286.5 | 1227.2 | 20 | 20 | Van Der Merwe, S (Schalk Wolf) | | WCT | 1521.7 | 1486.6 | North District School Trials 2024 (U9 Boys) | 4 | 2024-02-03 | S | W | 0 | 0.27 | -0.27 | -4.5 | 0.24 | -0.24 | -4.8 |
