| Date | Tournament | State | Round | Zina Costanzo | Barry Harridge |
|---|---|---|---|---|---|
| 15/04/1998 | Australian Championships | TAS | 2 | 302 | 535 |
| 06/12/1998 | Brighton | VIC | 2 | 343 | 399 |
| 22/04/2000 | Australian Championships | QLD | 9 | 419 | 407 |
| 14/09/2002 | Melbourne 15 Minutes | VIC | 6 | 415 | 292 |
| 07/10/2002 | New South Wales Championships | NSW | 15 | 427 | 340 |
| 10/10/2004 | Frankston | VIC | 6 | 315 | 301 |
| 29/12/2004 | Decathon | VIC | 7 | 368 | 320 |
| 27/08/2006 | Nunawading | VIC | 3 | 348 | 457 |
| 10/12/2006 | McKinnon 2006 | VIC | 1 | 376 | 368 |
| 11/06/2007 | Victorian Championships | VIC | 16 | 348 | 402 |
| 22/07/2007 | Nunawading | VIC | 3 | 324 | 397 |
| Head-to-head after 11 games | 6 | 5 | |||
| Average score | 362.27 | 383.45 | |||
| Spread | -233 | 233 | |||