| Tournament | Round | Arlene Williams | Rowena Vnuk |
| 27.12.2020 Xmas Leftovers (SA) | 1 | 343 | 400 |
| 27.12.2023 Xmas Leftovers (SA) | 2 | 336 | 448 |
| 19.04.2025 National Championship and Plate (SA) | 19 | 356 | 490 |
| Head-to-head after 3 games | 0 | 3 | |
| Average score | 345 | 446 | |
| Spread: | -303 | 303 | |