| Tournament | Round | John Finlay | Marge Roberts |
| 21.05.2006 Melville (WA) | 4 | 348 | 342 |
| 01.10.2006 Manjimup (WA) | 4 | 338 | 373 |
| 29.09.2007 Pinjarra Maximin (WA) | 2 | 358 | 339 |
| 16.08.2009 ROCKINGHAM 2009 (WA) | 7 | 373 | 339 |
| 19.05.2013 MELVILLE (WA) | 5 | 347 | 275 |
| 01.06.2015 WA Champs (WA) | 12 | 261 | 469 |
| 06.06.2016 WA Championship (WA) | 13 | 297 | 455 |
| 03.06.2019 WA Championship (WA) | 2 | 408 | 290 |
| Head-to-head after 8 games | 5 | 3 | |
| Average score | 341.25 | 360.25 | |