| Date | Tournament | State | Round | Mary McMahon | Phyllis Whitelaw |
|---|---|---|---|---|---|
| 08/02/1998 | Camberwell | VIC | 6 | 320 | 351 |
| 30/08/1998 | Knox | VIC | 6 | 342 | 360 |
| 17/04/1999 | Knox-Gully | VIC | 3 | 353 | 382 |
| 28/12/1999 | Decathon | VIC | 1 | 346 | 375 |
| Head-to-head after 4 games | 0 | 4 | |||
| Average score | 340.25 | 367.00 | |||
| Spread | -107 | 107 | |||