| Tournament | Round | Paul Richards | Zina Costanzo |
| 22.04.2000 Australian Championships (QLD) | 3 | 289 | 363 |
| 29.06.2000 Bordertown (SA) | 1 | 279 | 444 |
| 29.06.2000 Bordertown (SA) | 12 | 373 | 395 |
| 27.01.2002 City of Sydney International Masters (NSW) | 13 | 366 | 309 |
| 21.04.2003 Australian Championships (SA) | 3 | 324 | 351 |
| 14.06.2004 Victorian Championships (VIC) | 15 | 557 | 267 |
| 28.12.2006 Decathon (VIC) | 3 | 441 | 381 |
| 11.06.2007 Victorian Championships (VIC) | 17 | 357 | 421 |
| Head-to-head after 8 games | 3 | 5 | |
| Average score | 373.25 | 366.37 | |
| Spread: | 55 | -55 | |