| 1600.3 | 1600.6 | 20 | 20 | Terblanche, J (Johannes Du Toit ) | | WEG | 1652.3 | 1652.6 | George Trials 2 2026 (U19 Boys) | 3 | 2026-02-14 | S | W | 0.5 | 0.48 | 0.02 | 0.3 | 0.48 | 0.02 | 0.4 |
| 1600.3 | 1600.6 | 20 | 20 | Terblanche, J (Johannes Du Toit ) | | WEG | 1652.3 | 1652.6 | George Trials 1 2026 (U19 Boys) | 5 | 2026-01-31 | S | W | 1 | 0.48 | 0.52 | 5 | 0.48 | 0.52 | 6.1 |
| 1459.4 | 1464.8 | 20 | 20 | Du Toit Terblanche, J (Johannes) | | WEG | 1565.8 | 1600 | Western Cape Schools Individual Championship 2025 (U17 Boys) | 5 | 2025-04-27 | S | W | 0.5 | 0.42 | 0.08 | 1.3 | 0.38 | 0.12 | 2.4 |
| 1459.4 | 1464.8 | 20 | 20 | Du Toit Terblanche, J (Johannes) | | WEG | 1565.8 | 1600 | Eden Chess Trials 2 2025 (U18) | 10 | 2025-04-12 | S | B | 0 | 0.33 | -0.33 | -5.5 | 0.3 | -0.3 | -6 |
| 1405.5 | 1407.2 | 20 | 20 | Du Toit Terblanche, J (Johannes) | | WEG | 1479.9 | 1491.7 | Eden Schools Chess Trials 1 2025 (U17 Boys) | 4 | 2025-03-08 | S | B | 0 | 0.37 | -0.37 | -6.1 | 0.36 | -0.36 | -7.2 |
| 1377.2 | 1369.7 | 20 | 20 | Du Toit Terblanche, J (Johannes) | | WEG | 1477.1 | 1493.2 | George Schools Chess Trials 1 2025 (U17 Boys) | 5 | 2025-02-01 | S | W | 0.5 | 0.43 | 0.07 | 1.2 | 0.4 | 0.1 | 2 |
| 1403.3 | 1400.7 | 20 | 20 | Du Toit Terblanche, J (Johannes) | | WEG | 1200 | 1200 | George Schools Trials 1 2024 (U18 Boys) | 4 | 2024-02-03 | S | W | 1 | 0.78 | 0.22 | 3.7 | 0.78 | 0.22 | 4.4 |
