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