| Tournament | Round | Maureen Hilder | Chris Ostrowski |
| 14.12.2008 WAITARA CHRISTMAS 2008 (NSW) | 3 | 320 | 414 |
| 28.05.2011 REVESBY (NSW) | 3 | 307 | 393 |
| 25.11.2012 CENTRAL COAST C'SHIP 2 DAY (NSW) | 5 | 540 | 253 |
| 01.06.2013 CENTRAL COAST (NSW) | 2 | 309 | 411 |
| 09.04.2017 Lake Macquarie (NSW) | 2 | 462 | 389 |
| 27.10.2019 Empire Bay Oct (NSW) | 2 | 363 | 396 |
| 27.10.2019 Empire Bay Oct (NSW) | 2 | 363 | 396 |
| Head-to-head after 7 games | 2 | 5 | |
| Average score | 380.57 | 378.85 | |
| Spread: | 12 | -12 | |