| 1342.7 | 1349.1 | 20 | 20 | Vermeulen, JB (Johannes Bernardus) | | NCP | 1274.4 | 1276.6 | Hopetown Chess Tournament 2026 (U12) | 2 | 2026-02-07 | S | W | 1 | 0.62 | 0.38 | 4.1 | 0.63 | 0.37 | 4.8 |
| 1320.6 | 1324.8 | 20 | 20 | Vermeulen, JB (Johannes Bernardus) | | NCP | 1287 | 1290.1 | De Aar Primary School 2025 (U8+U10) | 3 | 2025-08-16 | S | W | 0.5 | 0.58 | -0.08 | -1.3 | 0.58 | -0.08 | -1.6 |
| 1267.5 | 1258.9 | 20 | 20 | Vermeulen, JB (Johannes Bernardus) | | NCP | 1225.4 | 1217.2 | 2024 Kimberley Chess Club Christmas Open (Bishops) | 2 | 2024-12-07 | S | B | 1 | 0.51 | 0.49 | 8.2 | 0.51 | 0.49 | 9.8 |
| 1307.4 | 1310.1 | 20 | 20 | Vermeulen, JB (Johannes Bernardus) | | NCP | 1272 | 1268.2 | 2024 NC Closed Chess Championships (U10) | 2 | 2024-08-24 | S | B | 0 | 0.5 | -0.5 | -9.4 | 0.51 | -0.51 | -10.2 |
| 1272.1 | 1271.1 | 20 | 20 | Vermeulen, JB (Johannes Bernardus) | | NCP | 1262 | 1254.9 | 2024 HSDA Open 3 (U9) | 3 | 2024-07-27 | S | B | 1 | 0.47 | 0.53 | 8.9 | 0.48 | 0.52 | 10.4 |
| 1262.7 | 1268.2 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1339.9 | 1339.9 | Hopetown Open Chess Tournament 2024 (U10+U12) | 4 | 2024-04-20 | S | W | 1 | 0.45 | 0.55 | 9.2 | 0.46 | 0.54 | 10.8 |
| 1229.1 | 1231.1 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1232.8 | 1229 | Hopetown Open Chess Tournament 2024 (U10) | 5 | 2024-02-10 | S | B | 0 | 0.45 | -0.45 | -7.6 | 0.46 | -0.46 | -9.2 |
| 1229.1 | 1231.1 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1232.8 | 1229 | 2024 Frances Baard Schools Open (U9) | 5 | 2024-02-03 | S | W | 0 | 0.54 | -0.54 | -9.1 | 0.54 | -0.54 | -10.8 |
| 1233.2 | 1235.1 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1281.3 | 1281.2 | 2023 Northern Cape Closed Chess Championships (U8+U10 Open) | 2 | 2023-08-26 | S | B | 1 | 0.4 | 0.6 | 11.3 | 0.4 | 0.6 | 12 |
| 1228.4 | 1231.5 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1158.6 | 1165.6 | Hopetown School Chess Open Tournament 2023 (U9) | 5 | 2023-05-06 | S | B | 1 | 0.54 | 0.46 | 7.7 | 0.53 | 0.47 | 9.4 |
| 1257.4 | 1266.4 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1152.2 | 1156 | Hopetown Schools Chess Open Tournament 2023 (U11) | 5 | 2023-02-25 | S | B | 0 | 0.58 | -0.58 | -9.7 | 0.59 | -0.59 | -11.8 |
| 1199.3 | 1198.8 | 20 | 20 | Vermeulen, J (Johannes) | | NCF | 1109.9 | 1106 | Pixley Chess Trials 2022 (U8) | 2 | 2022-09-03 | S | W | 1 | 0.65 | 0.35 | 5.9 | 0.65 | 0.35 | 7 |
