| Tournament | Round | Phyllis Whitelaw | Mary McMahon |
| 08.02.1998 Camberwell (VIC) | 6 | 351 | 320 |
| 30.08.1998 Knox (VIC) | 6 | 360 | 342 |
| 17.04.1999 Knox-Gully (VIC) | 3 | 382 | 353 |
| 28.12.1999 Decathon (VIC) | 1 | 375 | 346 |
| Head-to-head after 4 games | 4 | 0 | |
| Average score | 367 | 340.25 | |
| Spread: | 107 | -107 | |