| Tournament | Round | Dave Langley | Margaret Wilton |
| 05.12.2004 Summer Marathon (WA) | 3 | 321 | 321 |
| 05.12.2004 Summer Marathon (WA) | 8 | 285 | 251 |
| 06.02.2005 Fremantle (WA) | 6 | 378 | 282 |
| 10.04.2005 Nedlands (WA) | 5 | 382 | 357 |
| Head-to-head after 4 games | 3.5 | 0.5 | |
| Average score | 341.5 | 302.75 | |
| Spread: | 155 | -155 | |