| Tournament | Round | Liz Quantock | Janet Cotter |
| 30.05.1999 Melville (WA) | 4 | 488 | 335 |
| 08.07.2001 Bassendean (WA) | 5 | 249 | 355 |
| 12.01.2003 Open (WA) | 6 | 377 | 376 |
| 31.05.2003 Western Australian Championships (WA) | 6 | 398 | 301 |
| 22.06.2003 Manning (WA) | 4 | 308 | 316 |
| 14.09.2003 Maximin (WA) | 1 | 294 | 382 |
| 11.01.2004 January Maximin (WA) | 3 | 278 | 364 |
| 11.07.2004 Bassendean (WA) | 7 | 309 | 322 |
| Head-to-head after 8 games | 3 | 5 | |
| Average score | 337.62 | 343.87 | |