| Date | Tournament | State | Round | Olga Visser | Betty Foreman |
|---|---|---|---|---|---|
| 05/04/1999 | Australian Championships | NSW | 18 | 392 | 370 |
| 22/04/2000 | Australian Championships | QLD | 4 | 411 | 367 |
| 21/01/2001 | Baulkham Hills Kick-off | NSW | 1 | 314 | 364 |
| 27/01/2001 | City of Sydney International Masters | NSW | 5 | 372 | 354 |
| 14/07/2001 | Chatswood | NSW | 1 | 424 | 395 |
| 25/01/2004 | City of Sydney International Masters | NSW | 11 | 398 | 394 |
| 28/01/2007 | City of Sydney International Masters | NSW | 19 | 352 | 350 |
| 09/04/2007 | Australian Championships | NSW | 12 | 325 | 426 |
| 07/07/2007 | Chatswood | NSW | 6 | 482 | 344 |
| 01/10/2007 | New South Wales Champs | NSW | 15 | 390 | 304 |
| 25/01/2009 | City of Sydney International Masters | NSW | 6 | 327 | 379 |
| 18/07/2009 | Winter Masters | NSW | 5 | 457 | 365 |
| 05/10/2009 | NSW CHAMPIONSHIPS | NSW | 12 | 412 | 324 |
| 04/10/2010 | NSW Championships | NSW | 23 | 412 | 401 |
| 25/04/2011 | Aus Championship | ACT | 19 | 384 | 442 |
| 17/07/2011 | Winter Masters | NSW | 7 | 345 | 402 |
| 17/07/2011 | Winter Masters | NSW | 17 | 451 | 338 |
| 06/04/2015 | Australian Championship | VIC | 17 | 413 | 345 |
| 26/01/2018 | Australia Day Open | NSW | 8 | 480 | 346 |
| Head-to-head after 19 games | 14 | 5 | |||
| Average score | 396.89 | 368.95 | |||
| Spread | 531 | -531 | |||