| 1878.5 | 1867.8 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1836.9 | 1854.3 | 2022 Western Province Club League (Premier) | 7 | 2022-09-10 | S | B | 1 | 0.51 | 0.49 | 9.8 | 0.47 | 0.53 | 10.6 |
| 1866.6 | 1866.4 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1735.1 | 1739.6 | Western Cape Closed 2021 (Championship) | 2 | 2021-09-24 | S | B | 0 | 0.61 | -0.61 | -12.2 | 0.61 | -0.61 | -12.2 |
| 1852.5 | 1848.6 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1684.4 | 1683 | Paul Roos Gymnasium Covid-19 Challenge 2021 (A) | 2 | 2021-02-27 | S | B | 0.5 | 0.65 | -0.15 | -2.6 | 0.65 | -0.15 | -3 |
| 1800.9 | 1820.2 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1700.9 | 1724.6 | 2019 Western Cape Closed Chess Championships (Elite) | 6 | 2019-09-24 | S | B | 1 | 0.57 | 0.43 | 8.6 | 0.57 | 0.43 | 8.6 |
| 1769.3 | 1779.1 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1708.3 | 1755.2 | Western Cape Schools Individuals 2019 (U15 Boys) | 5 | 2019-05-05 | S | B | 1 | 0.53 | 0.47 | 7.8 | 0.49 | 0.51 | 10.2 |
| 1577.3 | 1584.7 | 20 | 20 | Van Der Merwe, A (Alexander) | | WCT | 1527.9 | 1528 | 2018 Steinitz Chess Festival (Prestige) | 3 | 2018-03-22 | S | B | 0.5 | 0.52 | -0.02 | -0.4 | 0.52 | -0.02 | -0.4 |
| 1458 | 1458 | 20 | 20 | Van Der Merwe, A (Alexander) | | WP | 1189 | 1189 | Sa Schools Individual Chess Championship 2015 U11O (U11 Open) | 3 | 2015-07-05 | S | B | 1 | 0.83 | 0.17 | 3 | 0.17 | 0.83 | 16.6 |
| 1237 | 1237 | 20 | 20 | Van Der Merwe, A (Alexander) | | WB | 1312 | 1312 | Welgemoed Chess Challenge 2015 (U12) | 4 | 2015-02-21 | R | B | 1 | 0.4 | 0.6 | 7.2 | 0.6 | 0.4 | 8 |
