| Tournament | Round | Sal Costanzo | Liz Marx |
| 28.12.1999 Decathon (VIC) | 8 | 372 | 423 |
| 22.04.2000 Australian Championships (QLD) | 10 | 343 | 402 |
| 12.06.2000 Victorian Championships (VIC) | 8 | 324 | 341 |
| 29.06.2000 Bordertown (SA) | 11 | 360 | 314 |
| 29.06.2000 Bordertown (SA) | 12 | 404 | 340 |
| 09.06.2001 Victorian Championships (VIC) | 8 | 455 | 337 |
| 03.11.2002 SA/Victoria Border Challenge Dimboola (VIC) | 7 | 402 | 293 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 380 | 350 | |
| Spread: | 210 | -210 | |