| Tournament | Round | Susan Macgillivray | Zina Costanzo |
| 05.10.1998 New South Wales Championships (NSW) | 15 | 354 | 403 |
| 05.10.1998 New South Wales Championships (NSW) | 21 | 376 | 283 |
| 05.05.2002 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 3 | 309 | 394 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 6 | 431 | 345 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 11 | 308 | 440 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 355.6 | 373 | |
| Spread: | -87 | 87 | |