| 1445.4 | 1439 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1540 | 1534.1 | Dr KKD Curro 2023 (U18) | 3 | 2023-05-13 | S | W | 0.5 | 0.43 | 0.07 | 1.2 | 0.43 | 0.07 | 1.4 |
| 1287.5 | 1292 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1526.8 | 1521.5 | Dr. KKD SAJCC Trials September 2022 (U16) | 3 | 2022-09-03 | S | B | 0 | 0.18 | -0.18 | -3 | 0.19 | -0.19 | -3.8 |
| 1251 | 1245.5 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1433.1 | 1460.4 | Schoonspruit Ope 2022 (A+B) | 1 | 2022-05-21 | S | W | 1 | 0.33 | 0.67 | 11.1 | 0.29 | 0.71 | 14.2 |
| 1253.7 | 1245.1 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1336.1 | 1350.6 | La Hoff Dr. KK Chess 2022 (A+B) | 1 | 2022-02-19 | S | W | 0 | 0.45 | -0.45 | -7.5 | 0.42 | -0.42 | -8.4 |
| 1330.8 | 1338.7 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1348.9 | 1369 | Saamtrek 2021 (Open) | 1 | 2021-06-12 | S | W | 0 | 0.52 | -0.52 | -8.6 | 0.51 | -0.51 | -10.2 |
| 946.8 | 916.4 | 20 | 20 | Van Der Westhuizen, F (Frederik) | | NWP | 1257.7 | 1253.2 | 2019 Hervormde Kerk (U14) | 2 | 2019-03-09 | S | W | 0 | 0.18 | -0.18 | -3 | 0.15 | -0.15 | -3 |
