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