| 1687.9 | 1683.6 | 28 | 28 | Claassen, DC (David Christian) | | NCP | 1273.6 | 1269.5 | Northern Cape Closed 2026 (U16 Open) | 1 | 2026-08-21 | S | B | 1 | 0.97 | 0.03 | 0.8 | 0.97 | 0.03 | 0.9 |
| 1710.3 | 1710.3 | 28 | 28 | Claassen, DC (David Christian) | | NCP | 1274 | 1273.7 | Hopetown Chess Tournament 3 2026 (C) | 1 | 2026-07-25 | S | B | 1 | 0.97 | 0.03 | 0.8 | 0.97 | 0.03 | 0.9 |
| 1530.1 | 1537.1 | 20 | 20 | Claassen, D (David Christian) | | NCP | 1177.5 | 1179.5 | Hopetown Schools Open 2025 (U15) | 4 | 2025-08-01 | S | W | 1 | 0.95 | 0.05 | 0.8 | 0.96 | 0.04 | 0.8 |
| 1458.9 | 1419.6 | 20 | 20 | Claassen, D (David Christian) | | NCP | 1179.1 | 1177 | HSDA Chess Club School Tournament 2023 (U12+U14) | 1 | 2023-07-29 | S | B | 1 | 0.78 | 0.22 | 3.7 | 0.74 | 0.26 | 5.2 |
