| 1447.6 | 1480.6 | 32 | 32 | Du Plessis, J (Jan-Dawid) | | WOS | 1427.1 | 1433.9 | Overberg Top Schools 2026 (U15) | 1 | 2026-08-01 | S | W | 0.5 | 0.57 | -0.07 | -1.8 | 0.61 | -0.11 | -3.4 |
| 1465.4 | 1359.2 | 20 | 20 | Du Plessis, J (Jan-Dawid) | | WOS | 1372.6 | 1318.2 | Overberg Schools High School Trials 2026 (U15 Boys) | 6 | 2026-02-21 | R | W | 1 | 0.65 | 0.35 | 4.2 | 0.59 | 0.41 | 8.2 |
| 1495 | 1434.2 | 20 | 20 | Du Plessis, J (Jan-Dawid) | | WOS | 1385.2 | 1342.4 | Hermanus Chess Club Open 2025 (Intermediate) | 1 | 2025-04-12 | R | B | 1 | 0.59 | 0.41 | 4.4 | 0.57 | 0.43 | 8.6 |
| 1191.2 | 1226.4 | 20 | 20 | Du Plessis, J (Jan-Dawid) | | WOS | 1272 | 1287.4 | Overberg Primary School Trials (Region 2) | 6 | 2023-03-10 | R | B | 0 | 0.36 | -0.36 | -3.4 | 0.39 | -0.39 | -7.8 |
