| Tournament | Round | Mary McMahon | Doreen Ivanovski |
| 11.10.1998 Bendigo (VIC) | 4 | 338 | 416 |
| 25.10.1998 Frankston (VIC) | 3 | 454 | 371 |
| 21.03.1999 Prahran (VIC) | 4 | 367 | 410 |
| 21.05.2000 Dandenong (VIC) | 5 | 339 | 398 |
| 12.06.2000 Victorian Championships (VIC) | 17 | 279 | 565 |
| 06.08.2000 Knox (VIC) | 5 | 442 | 416 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 369.83 | 429.33 | |
| Spread: | -357 | 357 | |