| Tournament | Round | Chris Ostrowski | Maree Heynen |
| 09.04.2007 Australian Championships (NSW) | 5 | 316 | 343 |
| 05.05.2007 Sydney's West (NSW) | 2 | 461 | 349 |
| 20.05.2007 Ulladulla 2007 (NSW) | 14 | 332 | 359 |
| 15.07.2007 Winter Challenge (NSW) | 6 | 313 | 365 |
| 24.11.2007 CENTRAL COAST CHAMPS (NSW) | 14 | 345 | 274 |
| 04.10.2008 NSW CHAMPIONSHIPS 08 (NSW) | 18 | 384 | 318 |
| 21.11.2010 Central Coast Championships (NSW) | 1 | 403 | 362 |
| Head-to-head after 7 games | 4 | 3 | |
| Average score | 364.85 | 338.57 | |
| Spread: | 184 | -184 | |