| Tournament | Round | Rosemary Collins | Keith Merritt |
| 16.07.2006 Newmarket (QLD) | 9 | 276 | 278 |
| 01.07.2007 Coominya (QLD) | 1 | 339 | 291 |
| 28.10.2007 Mindbenders Tournament (QLD) | 2 | 366 | 324 |
| 10.02.2008 Ipswich (QLD) | 1 | 306 | 329 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 321.75 | 305.5 | |
| Spread: | 65 | -65 | |