| Tournament | Round | Carol Johnston | Brenda Osler |
| 22.08.2004 Queensland Championships (QLD) | 13 | 268 | 337 |
| 12.11.2005 Cleveland (QLD) | 4 | 333 | 281 |
| 11.03.2006 Redland Bay (QLD) | 3 | 308 | 336 |
| 21.05.2006 May-Larkey Coorparoo (QLD) | 2 | 295 | 312 |
| Head-to-head after 4 games | 1 | 3 | |
| Average score | 301 | 316.5 | |
| Spread: | -62 | 62 | |