| Tournament | Round | Janet Cotter | Liz Quantock |
| 30.05.1999 Melville (WA) | 4 | 335 | 488 |
| 08.07.2001 Bassendean (WA) | 5 | 355 | 249 |
| 12.01.2003 Open (WA) | 6 | 376 | 377 |
| 31.05.2003 Western Australian Championships (WA) | 6 | 301 | 398 |
| 22.06.2003 Manning (WA) | 4 | 316 | 308 |
| 14.09.2003 Maximin (WA) | 1 | 382 | 294 |
| 11.01.2004 January Maximin (WA) | 3 | 364 | 278 |
| 11.07.2004 Bassendean (WA) | 7 | 322 | 309 |
| Head-to-head after 8 games | 5 | 3 | |
| Average score | 343.87 | 337.62 | |
| Spread: | 50 | -50 | |