| 1441.6 | 1447.4 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1183.1 | 1193.4 | BC Schools Chess Festival 2025 (U11 Open) | 1 | 2025-07-26 | S | D | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1412.3 | 1440.8 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1186.9 | 1200 | 5th BC Trails 2024 (U12A) | 1 | 2024-08-17 | S | B | 1 | 0.72 | 0.28 | 4.6 | 0.74 | 0.26 | 5.2 |
| 1405.9 | 1408.6 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1168.7 | 1182.4 | 3rd BC Trials 2024 (U12A) | 2 | 2024-05-11 | S | B | 1 | 0.73 | 0.27 | 4.5 | 0.72 | 0.28 | 5.6 |
| 1371.4 | 1335 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1225.1 | 1223.8 | BC Vikings Closed 2023 (U10) | 5 | 2023-10-04 | S | W | 1 | 0.71 | 0.29 | 4.9 | 0.67 | 0.33 | 6.6 |
| 1316.6 | 1268.8 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1266.3 | 1281 | BC 5th Trials 2023 (U10A) | 2 | 2023-09-02 | S | B | 1 | 0.52 | 0.48 | 8 | 0.44 | 0.56 | 11.2 |
| 1260.5 | 1214.4 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1255.2 | 1274.2 | 3rd BC Trials 2023 (U10A) | 3 | 2023-08-12 | S | B | 1 | 0.46 | 0.54 | 9 | 0.39 | 0.61 | 12.2 |
| 1213.5 | 1200 | 20 | 20 | Van Der Merwe, S (Sebastian) | | EBC | 1256.3 | 1159.2 | 2nd BC Trials 2023 (U10A) | 6 | 2023-06-03 | R | W | 1 | 0.49 | 0.51 | 6.1 | 0.59 | 0.41 | 8.2 |
