| Tournament | Round | Joan Thomas | Marlene Ellis |
| 22.02.1998 Ballarat (VIC) | 5 | 284 | 289 |
| 13.09.1998 Victorian Country Championships (VIC) | 4 | 378 | 280 |
| 07.02.1999 Ballarat (VIC) | 3 | 365 | 270 |
| 07.03.1999 Bendigo (VIC) | 6 | 311 | 322 |
| 05.03.2000 Bendigo (VIC) | 6 | 340 | 256 |
| 9.02.2002 Ballarat (VIC) | 2 | 259 | 345 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 322.83 | 293.66 | |
| Spread: | 175 | -175 | |