| 1326.2 | 1345.6 | 32 | 32 | Zembeta, M (Mary Siyamthanda) | | WCT | 1169.2 | 1197.6 | South African Open Championship 2026 (U11 Girls) | 1 | 2026-07-02 | S | W | 1 | 0.72 | 0.28 | 8.8 | 0.71 | 0.29 | 9.2 |
| 1469.5 | 1479.7 | 20 | 20 | Zembeta, M (Mary Siyamthanda) | | WCT | 1190.8 | 1227.1 | District Central Schools Chess Individual Trials 2026 (U11 Girls) | 1 | 2026-02-07 | S | W | 1 | 0.87 | 0.13 | 1.5 | 0.84 | 0.16 | 2.3 |
| 1364.1 | 1343 | 20 | 20 | Zembeta, M (Mary Siyamthanda) | | WCT | 1142.3 | 1140.5 | 2025 District Central Schools Chess Individual Trials (U9 Girls) | 5 | 2025-02-01 | S | B | 0.5 | 0.72 | -0.22 | -3.7 | 0.69 | -0.19 | -3.8 |
| 1093.5 | 1155.6 | 20 | 20 | Zembeta, M (Mary Siyamthanda) | | WCT | 1200 | 1200 | Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Girls) | 2 | 2024-03-02 | S | W | 1 | 0.42 | 0.58 | 9.6 | 0.49 | 0.51 | 10.2 |
| 1091.2 | 1164.8 | 20 | 20 | Zembete, M (Mary Siyamthanda) | | WCT | 1230.8 | 1200 | CT Metro Central District Schools Chess Individuals Trials 2024 (U9 Girls) | 2 | 2024-02-03 | S | W | 1 | 0.38 | 0.62 | 10.3 | 0.5 | 0.5 | 10 |
