| Tournament | Round | Wynne Davidson | Dave Langley |
| 21.05.2006 Melville (WA) | 6 | 326 | 358 |
| 04.06.2006 Western Australian Championships (WA) | 4 | 276 | 343 |
| 04.06.2007 Western Australian Championships C & D (WA) | 6 | 270 | 304 |
| 24.08.2008 Rockingham (WA) | 2 | 302 | 404 |
| 15.03.2009 Bunbury 2009 (WA) | 6 | 345 | 332 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 303.8 | 348.2 | |
| Spread: | -222 | 222 | |