| Tournament | Round | Barbara Nakkan | Shirley Winkler |
| 06.02.2005 Kempsey (NSW) | 4 | 262 | 334 |
| 05.02.2006 Kempsey Challenge (NSW) | 2 | 282 | 316 |
| 04.02.2007 Kempsey Challenge (NSW) | 7 | 270 | 321 |
| 03.02.2008 Kempsey Challenge & Cup (NSW) | 3 | 349 | 343 |
| 01.02.2009 Kempsey (NSW) | 10 | 316 | 353 |
| 26.07.2009 Ocean Shores (NSW) | 5 | 346 | 307 |
| 30.01.2010 Kempsey Cup & Challenge (NSW) | 6 | 389 | 295 |
| Head-to-head after 7 games | 3 | 4 | |
| Average score | 316.28 | 324.14 | |
| Spread: | -55 | 55 | |