| Tournament | Round | Joan Rosenthal | Chris Ostrowski |
| 06.09.2009 hillsopen (NSW) | 5 | 449 | 370 |
| 07.05.2011 SYDNEY WEST (NSW) | 3 | 438 | 315 |
| 28.08.2011 WSC Rep Fundraiser (NSW) | 7 | 424 | 322 |
| 31.08.2013 WAITARA TEAM CHALLENGE (NSW) | 5 | 411 | 339 |
| 18.05.2014 Ulladulla (NSW) | 11 | 423 | 340 |
| Head-to-head after 5 games | 5 | 0 | |
| Average score | 429 | 337.2 | |
| Spread: | 459 | -459 | |