| Tournament | Round | Rowena Vnuk | Tim Guidera |
| 13.03.2016 SA Championship (SA) | 9 | 358 | 320 |
| 13.03.2016 SA Championship (SA) | 16 | 546 | 265 |
| 26.02.2022 Seaford February (SA) | 4 | 350 | 383 |
| 23.10.2022 SA October (SA) | 6 | 358 | 325 |
| 24.09.2023 SA September (SA) | 1 | 439 | 438 |
| 22.10.2023 SA October (SA) | 2 | 461 | 290 |
| 23.03.2024 Seaford March (SA) | 3 | 392 | 336 |
| 26.05.2024 SA May Fours (SA) | 2 | 447 | 271 |
| 18.08.2024 Lyndee Hill (SA) | 10 | 353 | 422 |
| 22.09.2024 SA September (SA) | 4 | 419 | 306 |
| 27.12.2024 Xmas Leftovers (SA) | 4 | 489 | 306 |
| 02.02.2025 SA February (SA) | 6 | 318 | 400 |
| 19.04.2025 National Championship and Plate (SA) | 5 | 409 | 391 |
| Head-to-head after 13 games | 10 | 3 | |
| Average score | 410.69 | 342.53 | |