| Tournament | Round | Trish Marchand | Jenny Coetzee |
| 14.03.1999 Bunbury (WA) | 2 | 316 | 387 |
| 11.07.1999 Western Australian Masters (WA) | 11 | 290 | 326 |
| 19.03.2000 Bunbury (WA) | 4 | 377 | 261 |
| 14.01.2001 WA Open (WA) | 7 | 329 | 360 |
| 21.10.2001 Rockingham (WA) | 1 | 453 | 322 |
| 14.07.2002 Bassendean (WA) | 1 | 334 | 342 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 349.83 | 333 | |
| Spread: | 101 | -101 | |