| Tournament | Round | Judy Hay | Sal Costanzo |
| 25.01.1998 City of Sydney International Masters (NSW) | 14 | 304 | 443 |
| 14.06.1999 Victorian Championships (VIC) | 20 | 413 | 431 |
| 27.01.2003 City of Sydney International Masters (NSW) | 8 | 315 | 459 |
| 21.04.2003 Australian Championships (SA) | 14 | 434 | 385 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 366.5 | 429.5 | |
| Spread: | -252 | 252 | |