| Tournament | Round | Carol Harrison | Marilyn Mackie |
| 12.07.1998 WA Masters (WA) | 8 | 289 | 378 |
| 13.06.1999 Advanced Intermediate Recreation (WA) | 1 | 451 | 334 |
| 19.09.1999 Spring Subiaco (WA) | 1 | 383 | 343 |
| 17.10.1999 Rockingham (WA) | 5 | 429 | 273 |
| 30.05.2004 Melville (WA) | 6 | 339 | 299 |
| Head-to-head after 5 games | 4 | 1 | |
| Average score | 378.2 | 325.39 | |
| Spread: | 264 | -264 | |