| Tournament | Round | Marge Roberts | Maxine Baker |
| 08.12.2002 Marathon (WA) | 1 | 336 | 308 |
| 06.06.2005 Western Australian Championships (WA) | 3 | 417 | 342 |
| 06.06.2005 Western Australian Championships (WA) | 12 | 255 | 337 |
| 31.10.2005 Coogee (WA) | 6 | 357 | 357 |
| 24.08.2008 Rockingham (WA) | 6 | 344 | 333 |
| 19.05.2013 MELVILLE (WA) | 4 | 320 | 352 |
| 21.05.2017 Melville (WA) | 2 | 303 | 336 |
| 21.05.2023 Melville 2023 (WA) | 3 | 446 | 305 |
| 05.05.2024 Melville May (WA) | 5 | 294 | 331 |
| Head-to-head after 9 games | 4.5 | 4.5 | |
| Average score | 341.33 | 333.44 | |
| Spread: | 71 | -71 | |