| Tournament | Round | Marilyn Mackie | Brian Harry |
| 12.07.1998 WA Masters (WA) | 3 | 263 | 398 |
| 30.05.1999 Melville (WA) | 4 | 372 | 434 |
| 11.07.1999 Western Australian Masters (WA) | 16 | 311 | 430 |
| 05.12.1999 Marathon December (WA) | 2 | 336 | 339 |
| 08.07.2000 Bassendean (WA) | 5 | 291 | 445 |
| 08.10.2000 Rockingham (WA) | 3 | 407 | 307 |
| 08.04.2001 Nedlands (WA) | 4 | 307 | 395 |
| 10.03.2002 Bunbury (WA) | 5 | 338 | 396 |
| 30.03.2003 Praxis (WA) | 6 | 425 | 315 |
| 31.05.2003 Western Australian Championships (WA) | 3 | 305 | 406 |
| Head-to-head after 10 games | 2 | 8 | |
| Average score | 335.5 | 386.5 | |
| Spread: | -510 | 510 | |