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