| Tournament | Round | Alan Stewart | Mary McMahon |
| 06.12.1998 Brighton (VIC) | 5 | 418 | 435 |
| 28.12.1998 Decathon (VIC) | 6 | 345 | 400 |
| 28.12.1998 Decathon (VIC) | 16 | 296 | 390 |
| 05.12.1999 McKinnon (VIC) | 3 | 317 | 432 |
| 06.02.2000 Ballarat (VIC) | 4 | 417 | 333 |
| 16.04.2001 Australian Championships (VIC) | 8 | 354 | 422 |
| 09.06.2001 Victorian Championships (VIC) | 13 | 378 | 327 |
| 25.05.2002 Bunny (VIC) | 4 | 284 | 435 |
| 14.09.2002 Melbourne 15 Minutes (VIC) | 1 | 363 | 369 |
| 23.07.2006 Midwinter (VIC) | 6 | 309 | 440 |
| Head-to-head after 10 games | 2 | 8 | |
| Average score | 348.1 | 398.3 | |
| Spread: | -502 | 502 | |