| Tournament | Round | Robin Duncan | Alastair Richards |
| 28.10.2006 Sydney (NSW) | 5 | 406 | 377 |
| 07.07.2007 Chatswood (NSW) | 6 | 372 | 375 |
| 28.09.2008 Revesby WYSC Fundraiser (NSW) | 8 | 401 | 388 |
| 12.12.2010 Sydney Club 2010 (NSW) | 8 | 356 | 451 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 383.75 | 397.75 | |
| Spread: | -56 | 56 | |