| Tournament | Round | Marge Roberts | Dave Langley |
| 21.05.2006 Melville (WA) | 3 | 346 | 356 |
| 04.06.2006 Western Australian Championships (WA) | 6 | 367 | 356 |
| 04.06.2006 Western Australian Championships (WA) | 8 | 248 | 426 |
| 04.06.2007 Western Australian Championships C & D (WA) | 1 | 299 | 382 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 315 | 380 | |
| Spread: | -260 | 260 | |