| Tournament | Round | Joan Rosenthal | Olga Visser |
| 05.04.1999 Australian Championships (NSW) | 16 | 598 | 324 |
| 22.04.2000 Australian Championships (QLD) | 2 | 415 | 345 |
| 22.07.2001 Winter Masters (NSW) | 15 | 486 | 422 |
| 06.10.2003 NSW Championships (NSW) | 16 | 320 | 374 |
| 28.11.2004 Southport (QLD) | 1 | 360 | 387 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 435.8 | 370.4 | |
| Spread: | 327 | -327 | |