| 2021.2 | 2011.7 | 20 | 20 | Van Der Merwe, A (Alexander) | RM | WCT | 2059.2 | 2072.1 | Cape Town Chess Federation Club League 2025 (A) | 3 | 2025-08-16 | S | W | 0.5 | 0.5 | 0 | 0 | 0.47 | 0.03 | 0.6 |
| 1818.1 | 1829 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1854.1 | 1873.3 | South African Open 2022 (Championship) | 11 | 2022-07-17 | S | B | 1 | 0.42 | 0.58 | 11.6 | 0.41 | 0.59 | 11.8 |
| 1823.1 | 1832.6 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1885.1 | 1905 | WP Closed 2022 (A) | 4 | 2022-06-16 | S | W | 0 | 0.47 | -0.47 | -9.4 | 0.46 | -0.46 | -9.2 |
| 1756.3 | 1767 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1715.1 | 1717.2 | WP Open 2021 (Championship) | 6 | 2021-05-09 | S | W | 0 | 0.59 | -0.59 | -10.3 | 0.6 | -0.6 | -12 |
| 1711.6 | 1714.4 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1702.8 | 1704.6 | 2020 Western Province Open (Championship) | 6 | 2020-03-08 | S | B | 1 | 0.47 | 0.53 | 9.2 | 0.47 | 0.53 | 10.6 |
| 1235 | 1235 | 20 | 20 | Van Der Merwe, A (Alexander) | | WP | 1352 | 1352 | Paul Roos Open Championship 2017 (B) | 2 | 2017-03-18 | S | W | 0.5 | 0.34 | 0.16 | 2.8 | 0.16 | 0.34 | 6.8 |
