| Tournament | Round | Marilyn Mackie | Alan Mathews |
| 31.05.1998 Melville (WA) | 6 | 273 | 451 |
| 12.07.1998 WA Masters (WA) | 6 | 342 | 428 |
| 30.08.1998 Yokine (WA) | 5 | 396 | 328 |
| 11.07.1999 Western Australian Masters (WA) | 4 | 329 | 343 |
| 08.08.1999 Bassendean (WA) | 6 | 364 | 394 |
| 27.03.2000 Nedlands (WA) | 3 | 324 | 437 |
| 27.05.2001 Melville (WA) | 5 | 345 | 330 |
| 21.04.2002 Nedlands (WA) | 1 | 341 | 397 |
| 10.02.2002 Fremantle (WA) | 3 | 402 | 449 |
| 12.01.2003 Open (WA) | 2 | 391 | 283 |
| 30.03.2003 Praxis (WA) | 2 | 378 | 349 |
| 31.05.2003 Western Australian Championships (WA) | 15 | 379 | 376 |
| Head-to-head after 12 games | 5 | 7 | |
| Average score | 355.33 | 380.41 | |
| Spread: | -301 | 301 | |