| 1512.8 | 1511.9 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1447.7 | 1451.4 | 2025 Frances Baard Closed Chess Championship (U18) | 2 | 2025-04-12 | S | B | 0 | 0.53 | -0.53 | -8.9 | 0.53 | -0.53 | -10.6 |
| 1512.7 | 1507.6 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1419.7 | 1425.2 | Mzansi Interprovincial Youth Chess Championships 2024 (U18 Open Championship) | 5 | 2024-12-18 | S | W | 0 | 0.65 | -0.65 | -13 | 0.64 | -0.64 | -12.8 |
| 1490.1 | 1478.8 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1381.5 | 1382 | 2024 FB Schools Open 7.0 2024 (U17+U19) | 5 | 2024-10-19 | S | B | 0.5 | 0.58 | -0.08 | -1.3 | 0.57 | -0.07 | -1.4 |
| 1569.7 | 1577.3 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1463.4 | 1459.2 | 2024 Kimberley Chess Club School Holiday Tournament (Kings) | 5 | 2024-06-19 | S | B | 0 | 0.58 | -0.58 | -9.7 | 0.6 | -0.6 | -12 |
| 1496.1 | 1503.9 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1476.7 | 1478.4 | 2024 FB Schools Open 4.0 (U17+U19) | 3 | 2024-04-13 | S | B | 0 | 0.48 | -0.48 | -8.1 | 0.49 | -0.49 | -9.8 |
| 1470.3 | 1473.8 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1427 | 1433.1 | 2024 Frances Baard Schools Open (U17) | 5 | 2024-02-03 | S | W | 1 | 0.59 | 0.41 | 6.9 | 0.59 | 0.41 | 8.2 |
| 1448.4 | 1448.7 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1400.2 | 1397.9 | 2023 Northern Cape Closed Chess Championships (U16 Open) | 3 | 2023-08-26 | S | B | 1 | 0.51 | 0.49 | 9.2 | 0.52 | 0.48 | 9.6 |
| 1378.2 | 1383.2 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1315.7 | 1336.9 | 2023 Northern Cape Schools Provincial Trials (U15 Boys) | 5 | 2023-06-24 | S | B | 0 | 0.53 | -0.53 | -8.9 | 0.51 | -0.51 | -10.2 |
| 1248.7 | 1283.6 | 20 | 20 | De Jager, J (Jayden) | | NCF | 1200 | 1200 | Frances Baard Schools Individuals 2023 (U15) | 5 | 2023-02-18 | S | W | 0 | 0.6 | -0.6 | -10.1 | 0.64 | -0.64 | -12.8 |
