| Date | Tournament | State | Round | Ivor Zetler | Zina Costanzo |
|---|---|---|---|---|---|
| 27/01/2001 | City of Sydney International Masters | NSW | 17 | 391 | 357 |
| 08/09/2002 | Beecroft Marathon | NSW | 11 | 377 | 357 |
| 07/10/2002 | New South Wales Championships | NSW | 6 | 355 | 405 |
| 27/01/2003 | City of Sydney International Masters | NSW | 14 | 397 | 350 |
| Head-to-head after 4 games | 3 | 1 | |||
| Average score | 380.00 | 367.25 | |||
| Spread | 51 | -51 | |||