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