| Tournament | Round | Doris Schwenn | Mary McMahon |
| 16.04.2001 Australian Championships (VIC) | 9 | 316 | 442 |
| 07.03.2004 South Australian Championships (SA) | 5 | 382 | 363 |
| 07.03.2004 South Australian Championships (SA) | 13 | 363 | 424 |
| Head-to-head after 3 games | 1 | 2 | |
| Average score | 353.66 | 409.66 | |
| Spread: | -168 | 168 | |