| 1665 | 1661.6 | 20 | 20 | Barkhuizen, SJ (Simon Jurgens) | | GTP | 1603.8 | 1593.9 | 2025 Midstream Open Chess Tournament (U12) | 5 | 2025-08-25 | S | W | 0 | 0.61 | -0.61 | -10.1 | 0.62 | -0.62 | -12.4 |
| 1665 | 1661.6 | 20 | 20 | Barkhuizen, SJ (Simon Jurgens) | | GTP | 1603.8 | 1593.9 | 2025 Tshwane South School District CLOSED League Championship (U11A) | 2 | 2025-08-15 | S | B | 1 | 0.53 | 0.47 | 7.8 | 0.54 | 0.46 | 9.2 |
| 1665 | 1661.6 | 20 | 20 | Barkhuizen, SJ (Simon Jurgens) | | GTP | 1603.8 | 1593.9 | 2025 Etienne Lewis Closed Chess Tournament (U12) | 5 | 2025-08-10 | S | B | 0 | 0.53 | -0.53 | -10 | 0.54 | -0.54 | -10.8 |
| 1544.9 | 1528.7 | 20 | 20 | Barkhuizen, SJ (Simon Jurgens) | | GTP | 1570.9 | 1565.6 | 2025 Silver Lakes Chess Club Open Chess Tournament (U12) | 5 | 2025-05-03 | S | B | 1 | 0.43 | 0.57 | 9.5 | 0.42 | 0.58 | 11.6 |
| 1655 | 1642.5 | 20 | 20 | Barkhuizen, SJ (Simon Jurgens) | | GTP | 1611.5 | 1607.9 | 2025 KSNG Open (B) | 3 | 2025-02-22 | S | B | 0 | 0.51 | -0.51 | -8.5 | 0.5 | -0.5 | -10 |
