| Tournament | Round | Trish Windhurst | Olga Visser |
| 30.01.2000 City of Sydney International Masters (NSW) | 6 | 374 | 391 |
| 27.01.2001 City of Sydney International Masters (NSW) | 9 | 300 | 395 |
| 22.07.2001 Winter Masters (NSW) | 2 | 337 | 417 |
| 29.07.2001 Newcastle (NSW) | 7 | 415 | 292 |
| 01.10.2001 New South Wales Championships (NSW) | 11 | 342 | 392 |
| 19.01.2002 Baulkham Hills Kick-off (NSW) | 3 | 376 | 421 |
| 19.01.2003 Baulkham Hills Kick-off (NSW) | 3 | 308 | 389 |
| 06.10.2003 NSW Championships (NSW) | 2 | 459 | 269 |
| 06.10.2003 NSW Championships (NSW) | 21 | 334 | 365 |
| Head-to-head after 9 games | 2 | 7 | |
| Average score | 360.55 | 370.11 | |
| Spread: | -86 | 86 | |