| Tournament | Round | Ruth Fewings | Zina Costanzo |
| 30.08.1998 Knox (VIC) | 6 | 396 | 337 |
| 04.03.2001 Bendigo (VIC) | 1 | 389 | 338 |
| 30.09.2001 Essendon (VIC) | 3 | 340 | 370 |
| 23.06.2002 Nunawading (VIC) | 4 | 368 | 365 |
| 9.02.2002 Ballarat (VIC) | 5 | 333 | 452 |
| 15.02.2004 Camberwell (VIC) | 2 | 335 | 377 |
| Head-to-head after 6 games | 3 | 3 | |
| Average score | 360.16 | 373.16 | |
| Spread: | -78 | 78 | |