| 1314 | 1318 | 20 | 20 | Vermeulen, P (Petrus Van Der Walt) | | NCP | 1619.7 | 1627.8 | De Aar Open Chess Tournament 2026 (B) | 4 | 2026-01-31 | S | W | 0 | 0.19 | -0.19 | -3.2 | 0.18 | -0.18 | -3.6 |
| 1272.3 | 1269.3 | 20 | 20 | Vermeulen, P (Petrus Van Der Walt) | | NCP | 1544.9 | 1545.3 | Hopetown Schools Open 2025 (U13) | 2 | 2025-08-01 | S | W | 0 | 0.22 | -0.22 | -3.7 | 0.22 | -0.22 | -4.4 |
| 1311 | 1314 | 20 | 20 | Vermeulen, P (Petrus Van Der Walt) | | NCP | 1537.3 | 1537 | 2025 HSDA School Chess Tournament (U13) | 4 | 2025-02-08 | S | B | 0 | 0.19 | -0.19 | -3.2 | 0.2 | -0.2 | -4 |
| 1251.2 | 1245.3 | 20 | 20 | Vermeulen, P (Petrus Van Der Walt) | | NCP | 1565.4 | 1574.2 | 2024 NC Closed Chess Championships (U12 Open) | 2 | 2024-08-24 | S | B | 0 | 0.09 | -0.09 | -1.7 | 0.08 | -0.08 | -1.6 |
