| Tournament | Round | Barry Harridge | Zina Costanzo |
| 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 10 games | 4 | 6 | |
| Average score | 368.3 | 368.3 | |
| Spread: | 0 | 0 | |