| Tournament | Round | Janet Cotter | Anne Trotter |
| 14.09.2003 Maximin (WA) | 3 | 386 | 364 |
| 28.03.2004 Nedlands (WA) | 5 | 452 | 321 |
| 10.04.2005 Nedlands (WA) | 2 | 399 | 332 |
| 11.09.2005 Spring Maximin (WA) | 7 | 354 | 377 |
| 09.07.2006 Bassendean (WA) | 1 | 307 | 445 |
| Head-to-head after 5 games | 3 | 2 | |
| Average score | 379.6 | 367.8 | |
| Spread: | 59 | -59 | |