| 1258.2 | 1203.2 | 20 | 20 | Visser, AJC (Alwyn Jacobus Christiaan) | | WCW | 1280 | 1213.2 | Robertson Strategema Chess May 2024 (U11) | 5 | 2024-05-11 | R | B | 0.5 | 0.43 | 0.07 | 0.8 | 0.45 | 0.05 | 1 |
| 1286 | 1294.7 | 20 | 20 | Visser, AJC (Alwyn Jacobus Christiaan) | | WCW | 1302.5 | 1299.3 | Robertson Chess Tournament Oct 2023 (U11) | 3 | 2023-10-28 | S | B | 0.5 | 0.44 | 0.06 | 1 | 0.45 | 0.05 | 1 |
| 1209.2 | 1206.8 | 20 | 20 | Visser, AJC (Alwyn Jacobus Christiaan) | | WCW | 1244.3 | 1267.2 | Robertson Strategema Club 2022 (U9) | 5 | 2022-10-29 | S | B | 1 | 0.42 | 0.58 | 9.6 | 0.39 | 0.61 | 12.2 |
| 1202 | 1200 | 20 | 20 | Visser, AJC (Alwyn Jacobus Christiaan) | | WCW | 1182.9 | 1200 | Strategema 2022 (U9) | 3 | 2022-09-10 | S | B | 0 | 0.48 | -0.48 | -8 | 0.46 | -0.46 | -9.2 |
| 1200 | 1200 | 20 | 20 | Visser, AJC (Alwyn Jacobus Christiaan) | | WCW | 1200 | 1200 | McGregor Kings Chess Festival 2022 (Beginners) | 1 | 2022-04-09 | R | B | 0.5 | 0.46 | 0.04 | 0.5 | 0.46 | 0.04 | 0.8 |
