| Tournament | Round | Mary Steward | Eilene Howarth |
| 16.05.1998 Dandenong (VIC) | 4 | 432 | 325 |
| 17.01.1999 Bil Rose Aestival (VIC) | 5 | 387 | 430 |
| 22.08.1999 Bentleigh (VIC) | 5 | 374 | 398 |
| 05.12.1999 McKinnon (VIC) | 2 | 379 | 427 |
| 30.11.2003 McKinnon (VIC) | 5 | 483 | 328 |
| 25.07.2004 Bentleigh (VIC) | 5 | 385 | 442 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 406.66 | 391.66 | |
| Spread: | 90 | -90 | |