| 1522.6 | 1520.4 | 32 | 32 | De Noon, SJ (Stian Johanco) | | NCP | 1421.3 | 1418.1 | HSDA Open Schools Tournament 2026 (U13+U15) | 3 | 2026-04-25 | S | W | 1 | 0.66 | 0.34 | 9.1 | 0.66 | 0.34 | 10.9 |
| 1397.8 | 1394.4 | 20 | 20 | De Noon, SJ (Stian Johanco) | | NCP | 1319.3 | 1317.2 | De Aar Open Chess Tournament 2026 (B) | 4 | 2026-01-31 | S | B | 1 | 0.55 | 0.45 | 5.7 | 0.55 | 0.45 | 6.7 |
| 1334.3 | 1337.7 | 20 | 20 | De Noon, SJ (Stian Johanco) | | NCP | 1333.6 | 1331 | De Aar Primary School 2025 (U12) | 3 | 2025-08-16 | S | W | 0 | 0.54 | -0.54 | -9.1 | 0.55 | -0.55 | -11 |
| 1135.6 | 1128.4 | 20 | 20 | De Noon, S (Stian Johanco) | | NCJ | 1183.8 | 1184.4 | Hopetown Schools Chess Tournament 2024 (U11) | 3 | 2024-08-17 | S | B | 0 | 0.4 | -0.4 | -6.7 | 0.39 | -0.39 | -7.8 |
