| Tournament | Round | Bob Jackman | Zina Costanzo |
| 07.05.2000 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 2 | 449 | 326 |
| 08.09.2002 Beecroft Marathon (NSW) | 9 | 395 | 341 |
| 07.10.2002 New South Wales Championships (NSW) | 17 | 414 | 299 |
| 04.05.2003 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 4 | 410 | 430 |
| 02.05.2004 NSW/Victoria Border Challenge Wagga Wagga (NSW) | 4 | 431 | 247 |
| Head-to-head after 5 games | 4 | 1 | |
| Average score | 419.8 | 328.6 | |
| Spread: | 456 | -456 | |