| Tournament | Round | Kathryn Tiffen | Ivana Duria |
| 16.03.2003 Wyong (NSW) | 1 | 389 | 355 |
| 18.03.2006 Wyong (NSW) | 3 | 349 | 329 |
| 03.06.2006 Woy Woy (NSW) | 4 | 262 | 388 |
| 17.03.2007 Wyong (NSW) | 6 | 369 | 275 |
| 02.06.2007 Woy Woy (NSW) | 5 | 446 | 272 |
| 30.05.2009 Woy Woy (NSW) | 6 | 334 | 373 |
| 30.11.2014 Central Coast C'SHIP (NSW) | 1 | 306 | 364 |
| 29.11.2015 Central Coast Championships (NSW) | 4 | 283 | 367 |
| Head-to-head after 8 games | 4 | 4 | |
| Average score | 342.25 | 340.37 | |
| Spread: | 15 | -15 | |