| 1433.3 | 1442.7 | 20 | 20 | De Noon, SJ (Stian Johanco) | | NCP | 1319.3 | 1317.2 | De Aar Open Chess Tournament 2026 (B) | 2 | 2026-01-31 | S | W | 0 | 0.67 | -0.67 | -11.3 | 0.69 | -0.69 | -13.8 |
| 1295.5 | 1279.3 | 20 | 20 | De Noon, SJ (Stian Johanco) | | NCP | 1333.6 | 1331 | De Aar Primary School 2025 (U12) | 4 | 2025-08-16 | S | B | 1 | 0.41 | 0.59 | 9.9 | 0.4 | 0.6 | 12 |
| 1299.6 | 1275.5 | 20 | 20 | De Noon, SJ (Stian Johanco) | | NCP | 1306.9 | 1298.2 | 2025 Hopetown Schools Chess Tournament (U11+U13) | 4 | 2025-05-17 | S | B | 0 | 0.45 | -0.45 | -7.6 | 0.43 | -0.43 | -8.6 |
| 1260.8 | 1271.2 | 20 | 20 | De Noon, S (Stian Johanco) | | NCJ | 1183.8 | 1184.4 | 2024 NC Closed Chess Championships (U12 Open) | 1 | 2024-08-23 | S | W | 0 | 0.63 | -0.63 | -11.8 | 0.64 | -0.64 | -12.8 |
| 1260.8 | 1271.2 | 20 | 20 | De Noon, S (Stian Johanco) | | NCJ | 1183.8 | 1184.4 | 2024 Pixley Ka Seme Chess Schools Open 2 (U11) | 4 | 2024-08-03 | S | W | 1 | 0.63 | 0.37 | 6.2 | 0.64 | 0.36 | 7.2 |
| 1170.4 | 1163.2 | 20 | 20 | De Noon, S (Stian Johanco) | | NCJ | 1156 | 1150.6 | 2024 HSDA Open 3 (U11) | 4 | 2024-07-27 | S | W | 1 | 0.56 | 0.44 | 7.4 | 0.56 | 0.44 | 8.8 |
