| Tournament | Round | Shirley Pelham | Olga Visser |
| 14.10.2007 Fundraiser at Coorparoo (QLD) | 2 | 338 | 413 |
| 27.10.2013 Redcliffe Sunday (QLD) | 1 | 361 | 324 |
| 26.10.2014 Redcliffe Sunday (QLD) | 1 | 274 | 408 |
| 14.02.2016 February Frolic (QLD) | 4 | 351 | 399 |
| 13.11.2016 youth fr nov (QLD) | 4 | 349 | 380 |
| 26.12.2016 Last Chance (QLD) | 2 | 362 | 383 |
| 26.12.2016 Last Chance (QLD) | 8 | 332 | 403 |
| 10.03.2018 Bremer Waters (QLD) | 1 | 399 | 342 |
| 12.12.2018 Bethania Wed (QLD) | 3 | 360 | 271 |
| 12.12.2018 Bethania Wed (QLD) | 6 | 360 | 388 |
| 06.05.2019 Help Me May (QLD) | 8 | 358 | 329 |
| 21.07.2019 QAH July (QLD) | 3 | 354 | 372 |
| 01.12.2019 Southport Christmas (QLD) | 8 | 319 | 340 |
| 15.12.2019 Almost Last Chance (QLD) | 6 | 322 | 439 |
| 12.02.2020 Bethania Wed (QLD) | 6 | 435 | 422 |
| 10.12.2020 Bethania Thurs (QLD) | 3 | 347 | 372 |
| 10.12.2020 Bethania Thurs (QLD) | 3 | 347 | 372 |
| 17.06.2021 Bethania Thu RR (QLD) | 4 | 353 | 370 |
| Head-to-head after 18 games | 5 | 13 | |
| Average score | 351.16 | 373.72 | |
| Spread: | -406 | 406 | |