| Date | Tournament | State | Round | Zina Costanzo | John Barker |
|---|---|---|---|---|---|
| 12/01/1997 | Lasseters Inodoor Challenge (Masters Only) | NT | 17 | 308 | 422 |
| 05/07/1998 | High Country | VIC | 1 | 447 | 399 |
| 07/05/2000 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 3 | 324 | 510 |
| 05/05/2002 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 7 | 331 | 359 |
| 07/09/2002 | St George | NSW | 6 | 391 | 418 |
| 07/10/2002 | New South Wales Championships | NSW | 22 | 332 | 437 |
| 04/05/2003 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 2 | 327 | 524 |
| 02/05/2004 | NSW/Victoria Border Challenge Wagga Wagga | NSW | 7 | 297 | 427 |
| Head-to-head after 8 games | 1 | 7 | |||
| Average score | 344.62 | 437.00 | |||
| Spread | -739 | 739 | |||