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