| Tournament | Round | Olga Visser | Khen Meerding |
| 15.04.1998 Australian Championships (TAS) | 12 | 370 | 400 |
| 05.04.1999 Australian Championships (NSW) | 21 | 308 | 386 |
| 28.03.2005 Australian Championships (TAS) | 13 | 415 | 422 |
| 18.09.2005 Australian Masters & State Challenge Trophy (VIC) | 3 | 379 | 374 |
| 13.09.2008 MASTERS AND STATE CHALLENGE TROPHY (VIC) | 19 | 427 | 323 |
| 08.08.2009 Magnetic Island Saturday (QLD) | 7 | 391 | 354 |
| 09.04.2012 Australian Championship (TAS) | 9 | 388 | 488 |
| 09.04.2012 Australian Championship (TAS) | 14 | 309 | 397 |
| Head-to-head after 8 games | 3 | 5 | |
| Average score | 373.37 | 393 | |
| Spread: | -157 | 157 | |