| Tournament | Round | Marjorie Giffen | Olga Visser |
| 29.07.2012 Cairns (QLD) | 1 | 462 | 392 |
| 07.10.2012 Cairns Oktoberfest Sun (QLD) | 2 | 307 | 408 |
| 07.10.2012 Cairns Oktoberfest Sun (QLD) | 10 | 363 | 350 |
| 08.10.2012 Cairns Oktoberfest Mon (QLD) | 2 | 316 | 400 |
| 08.10.2012 Cairns Oktoberfest Mon (QLD) | 8 | 370 | 379 |
| 06.12.2020 Southport (QLD) | 3 | 415 | 334 |
| 06.12.2020 Southport (QLD) | 3 | 415 | 334 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 378.28 | 371 | |
| Spread: | 51 | -51 | |