| Tournament | Round | Marge Roberts | Kath Bermingham |
| 14.03.1999 Bunbury (WA) | 1 | 469 | 292 |
| 25.04.1999 Nedlands (WA) | 1 | 285 | 460 |
| 30.05.1999 Melville (WA) | 1 | 297 | 330 |
| 30.09.2001 Manjimup (WA) | 4 | 277 | 356 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 332 | 359.5 | |
| Spread: | -110 | 110 | |