| Tournament | Round | Mary Mackie | Joan Thomas |
| 07.03.1999 Bendigo (VIC) | 5 | 329 | 272 |
| 05.03.2000 Bendigo (VIC) | 2 | 372 | 262 |
| 04.03.2001 Bendigo (VIC) | 2 | 336 | 271 |
| 9.02.2002 Ballarat (VIC) | 3 | 313 | 340 |
| Head-to-head after 4 games | 3 | 1 | |
| Average score | 337.5 | 286.25 | |
| Spread: | 205 | -205 | |