| Tournament | Round | Lesley Mack | Don Marshall |
| 14.06.1999 Victorian Championships (VIC) | 4 | 458 | 280 |
| 20.02.2000 Camberwell (VIC) | 4 | 365 | 366 |
| 12.06.2000 Victorian Championships (VIC) | 13 | 324 | 389 |
| 29.04.2001 Western Suburbs (VIC) | 6 | 346 | 441 |
| 09.06.2001 Victorian Championships (VIC) | 8 | 357 | 290 |
| 25.07.2004 Bentleigh (VIC) | 6 | 332 | 339 |
| Head-to-head after 6 games | 2 | 4 | |
| Average score | 363.66 | 350.83 | |
| Spread: | 77 | -77 | |