| Tournament | Round | Elwyn Chalk | Trish Marchand |
| 30.08.1998 Yokine (WA) | 6 | 326 | 308 |
| 17.01.1999 WA Open (WA) | 2 | 340 | 319 |
| 11.07.1999 Western Australian Masters (WA) | 18 | 286 | 401 |
| 19.03.2000 Bunbury (WA) | 3 | 389 | 316 |
| 14.01.2001 WA Open (WA) | 2 | 392 | 338 |
| 13.01.2002 WA Open (WA) | 2 | 431 | 327 |
| Head-to-head after 6 games | 5 | 1 | |
| Average score | 360.66 | 334.83 | |
| Spread: | 155 | -155 | |