| Tournament | Round | Heather Lowden | Sal Costanzo |
| 24.09.2006 Australian Masters and State Challenge Trophy (NSW) | 16 | 423 | 365 |
| 13.09.2009 MASTERS AND STATE CHALLENGE TROPHY (NSW) | 3 | 525 | 400 |
| Head-to-head after 2 games | 2 | 0 | |
| Average score | 474 | 382.5 | |
| Spread: | 183 | -183 | |