| Date | Tournament | State | Round | Gloria Gallagher | Zina Costanzo |
|---|---|---|---|---|---|
| 01/08/1999 | Winter Masters | NSW | 16 | 342 | 367 |
| 30/01/2000 | City of Sydney International Masters | NSW | 3 | 324 | 396 |
| 27/01/2001 | City of Sydney International Masters | NSW | 14 | 486 | 324 |
| 27/01/2002 | City of Sydney International Masters | NSW | 5 | 338 | 377 |
| Head-to-head after 4 games | 1 | 3 | |||
| Average score | 372.50 | 366.00 | |||
| Spread | 26 | -26 | |||