| 1510.8 | 1521.9 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1512.4 | 1528.5 | George Trials 2 2026 (U11 Boys) | 4 | 2026-02-14 | S | W | 1 | 0.54 | 0.46 | 7.6 | 0.53 | 0.47 | 9.4 |
| 1510.8 | 1521.9 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1512.4 | 1528.5 | George Trials 1 2026 (U11 Boys) | 4 | 2026-01-31 | S | B | 1 | 0.46 | 0.54 | 5.2 | 0.45 | 0.55 | 6.4 |
| 1520.4 | 1211.3 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1568.3 | 1315.9 | HCPS Invitational Rapid Tournament 2025 (U11) | 1 | 2025-10-18 | R | B | 1 | 0.4 | 0.6 | 6.5 | 0.34 | 0.66 | 13.2 |
| 1251.1 | 1253.5 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1305.2 | 1303.9 | George Chess Trials 2 2023 (U9 Boys) | 5 | 2023-02-11 | S | B | 0 | 0.4 | -0.4 | -6.6 | 0.4 | -0.4 | -8 |
| 1216.6 | 1220 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1150.2 | 1140 | Eden Proewe 1 2022 (O7 Seuns) | 1 | 2022-03-12 | S | W | 0 | 0.62 | -0.62 | -10.5 | 0.63 | -0.63 | -12.6 |
| 1200 | 1200 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1200 | 1200 | George Trials 3 2022 (U7) | 5 | 2022-02-26 | S | B | 1 | 0.46 | 0.54 | 9 | 0.46 | 0.54 | 10.8 |
| 1200 | 1200 | 20 | 20 | Van Der Merwe, O (Oliver) | | WEG | 1200 | 1200 | George Trials 2 2022 (U7) | 3 | 2022-02-12 | S | B | 0.5 | 0.46 | 0.04 | 0.7 | 0.46 | 0.04 | 0.8 |
