| 1251 | 1257.7 | 20 | 20 | Van Der Westhuizen, S (Simeon) | | GE | 1239.9 | 1196.1 | Ekurhuleni Trial 4 2025 (E) | 2 | 2025-09-21 | S | W | 0 | 0.55 | -0.55 | -9.1 | 0.61 | -0.61 | -12.2 |
| 1200 | 1200 | 20 | 20 | Van Der Westhuizen, S (Simeon) | | GE | 1237.1 | 1209.9 | Ekurhuleni Trial 2 2025 (E) | 2 | 2025-06-21 | S | W | 0 | 0.5 | -0.5 | -8.3 | 0.53 | -0.53 | -10.6 |
| 1199.8 | 1199.7 | 20 | 20 | Van Der Westhuizen, S (Simeon) | | GE | 1255.6 | 1213.2 | Ekurhuleni Trials 2025 (E) | 5 | 2025-05-24 | S | W | 1 | 0.48 | 0.52 | 8.6 | 0.53 | 0.47 | 9.4 |
| 1200 | 1200 | 20 | 20 | Van Der Westhuizen, S (Simeon) | | GE | 1272.8 | 1220.3 | East Rand Chess Club Open 2025 (C) | 1 | 2025-03-01 | S | B | 0 | 0.37 | -0.37 | -6.1 | 0.43 | -0.43 | -8.6 |
