| Tournament | Round | Jack Ashwin | Marilyn Smith |
| 02.08.1998 Kooralbyn (QLD) | 6 | 349 | 351 |
| 23.08.1998 Queensland Championships (QLD) | 14 | 312 | 385 |
| 11.10.1998 Greenbank (QLD) | 5 | 322 | 469 |
| 21.02.1999 Ipswich (QLD) | 4 | 318 | 462 |
| 11.07.1999 Coominya Winter (QLD) | 2 | 324 | 327 |
| 10.09.2000 Toowoomba (QLD) | 5 | 239 | 339 |
| 03.12.2000 Southport (QLD) | 3 | 323 | 453 |
| 06.05.2001 Auran Open (QLD) | 1 | 308 | 333 |
| 10.11.2002 Redcliffe (QLD) | 6 | 386 | 330 |
| 15.11.2003 Cleveland (QLD) | 6 | 284 | 334 |
| 13.03.2004 Redland Bay (QLD) | 2 | 322 | 422 |
| 11.02.2007 Ipswich (QLD) | 3 | 285 | 439 |
| 07.05.2007 Queensland Championships (Masters) (QLD) | 13 | 346 | 366 |
| 30.08.2009 Qld Champs Sun (QLD) | 3 | 317 | 421 |
| 30.05.2010 Rainbow Region (NSW) | 1 | 352 | 415 |
| Head-to-head after 15 games | 1 | 14 | |
| Average score | 319.13 | 389.73 | |
| Spread: | -1059 | 1059 | |