| Tournament | Round | Marge Roberts | Maureen Gill |
| 13.02.2000 Fremantle (WA) | 2 | 373 | 237 |
| 27.05.2001 Melville (WA) | 5 | 341 | 335 |
| 08.12.2002 Marathon (WA) | 6 | 372 | 280 |
| 13.07.2003 Bassendean (WA) | 3 | 317 | 353 |
| 31.08.2003 Yokine (WA) | 2 | 369 | 384 |
| 02.10.2004 Manjimup Warmup (WA) | 3 | 330 | 385 |
| 24.09.2005 Manjimup Maximin (WA) | 3 | 349 | 336 |
| 25.09.2005 Manjimup Standard (WA) | 7 | 322 | 469 |
| 08.03.2026 March Trisect (WA) | 2 | 352 | 282 |
| Head-to-head after 9 games | 5 | 4 | |
| Average score | 347.22 | 340.11 | |
| Spread: | 64 | -64 | |