| Tournament | Round | Ros Gibbons | Sal Costanzo |
| 25.01.1998 City of Sydney International Masters (NSW) | 10 | 317 | 382 |
| 01.08.1999 Winter Masters (NSW) | 16 | 378 | 413 |
| 27.01.2001 City of Sydney International Masters (NSW) | 10 | 343 | 375 |
| 06.05.2001 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 3 | 300 | 350 |
| Head-to-head after 4 games | 0 | 4 | |
| Average score | 334.5 | 380 | |
| Spread: | -182 | 182 | |