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