| 1667.2 | 1679.5 | 28 | 28 | Anthonissen, MV (Mikhael Villem) | | WCT | 1612.8 | 1618.2 | Table View Chess Club Junior Chess Championship 2026 (U11) | 5 | 2026-05-09 | S | W | 1 | 0.61 | 0.39 | 9.2 | 0.61 | 0.39 | 10.8 |
| 1623.4 | 1657.6 | 28 | 28 | Anthonissen, MV (Mikhael Villem) | | WCT | 1600 | 1614.4 | Chess Elevation Series 5 2026 (Level 5) | 4 | 2026-04-18 | S | W | 0 | 0.57 | -0.57 | -13.9 | 0.59 | -0.59 | -16.6 |
| 1623.4 | 1657.6 | 28 | 28 | Anthonissen, MV (Mikhael Villem) | | WCT | 1600 | 1614.4 | South African Junior Closed Chess Championship 2026 (U10 Open) | 5 | 2026-03-30 | S | W | 1 | 0.57 | 0.43 | 12.1 | 0.59 | 0.41 | 11.4 |
| 1728.1 | 1648.9 | 20 | 20 | Anthonissen, MV (Mikhael Villem) | | WCT | 1639.8 | 1379.2 | COGH 2026 (U12) | 6 | 2026-02-01 | R | W | 1 | 0.64 | 0.36 | 2.2 | 0.86 | 0.14 | 1.6 |
| 1536.9 | 1543.3 | 20 | 20 | Anthonissen, MV (Mikhael Villem) | | GTP | 1633.6 | 1614.8 | A & A Invitational Chess Tournament 2025 (U8+U10) | 3 | 2025-11-29 | S | B | 0 | 0.35 | -0.35 | -5.8 | 0.38 | -0.38 | -7.6 |
| 1553.6 | 1531.7 | 20 | 20 | Anthonissen, MV (Mikhael Villem) | | GTP | 1746.5 | 1755.9 | Cape Winelands Open 2025 (U10) | 3 | 2025-07-19 | S | W | 1 | 0.32 | 0.68 | 11.3 | 0.28 | 0.72 | 14.4 |
| 1496.1 | 1460.6 | 20 | 20 | Anthonissen, M (Mikhael) | | GTP | 1576.7 | 1582.9 | South African Junior Closed Chess Championships 2025 (U10 Open) | 7 | 2025-04-04 | S | B | 0 | 0.36 | -0.36 | -7.2 | 0.32 | -0.32 | -6.4 |
