| Tournament | Round | Col Coulton | Muriel Coulton |
| 22.04.2000 Australian Championships (QLD) | 3 | 372 | 325 |
| 06.05.2001 Auran Open (QLD) | 3 | 385 | 222 |
| 07.10.2001 Mindbenders Standard (QLD) | 4 | 316 | 207 |
| 29.05.2005 Surfers is Paradise Mindgames (QLD) | 2 | 338 | 278 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 352.75 | 258 | |
| Spread: | 379 | -379 | |