| Tournament | Round | Chris Ostrowski | Joan Buchanan |
| 15.07.2007 Winter Challenge (NSW) | 3 | 329 | 407 |
| 03.05.2008Sydney West (NSW) | 4 | 363 | 305 |
| 11.07.2009 Glenbrook WYSC Fundraiser (NSW) | 7 | 297 | 341 |
| 31.10.2009 Nowra 2009 (NSW) | 3 | 451 | 489 |
| 19.06.2010 Wollongong WORDS Winter (NSW) | 5 | 460 | 301 |
| Head-to-head after 5 games | 2 | 3 | |
| Average score | 380 | 368.6 | |
| Spread: | 57 | -57 | |