| Tournament | Round | Marge Roberts | Lola Dunstan |
| 14.03.1999 Bunbury (WA) | 5 | 427 | 322 |
| 27.03.2000 Nedlands (WA) | 3 | 312 | 339 |
| 25.06.2000 Advanced Intermediate Recreation (WA) | 4 | 322 | 374 |
| 15.05.2005 Melville (WA) | 6 | 340 | 295 |
| 25.09.2005 Manjimup Standard (WA) | 5 | 443 | 361 |
| 04.06.2006 Western Australian Championships (WA) | 3 | 456 | 266 |
| Head-to-head after 6 games | 4 | 2 | |
| Average score | 383.33 | 326.16 | |
| Spread: | 343 | -343 | |