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