| Tournament | Round | Sylvia Walker | Erica Williams |
| 23.05.1999 Brisbane Open (QLD) | 1 | 368 | 360 |
| 21.08.1999 Queensland Championships (QLD) | 12 | 327 | 368 |
| 22.04.2000 Australian Championships (QLD) | 7 | 383 | 388 |
| 14.10.2000 Mindbenders Open (QLD) | 2 | 303 | 385 |
| 06.05.2001 Auran Open (QLD) | 6 | 359 | 377 |
| 13.01.2002 Greenbank (QLD) | 6 | 382 | 373 |
| 17.02.2002 Albert & Logan Marathon (QLD) | 1 | 385 | 393 |
| 17.02.2002 Albert & Logan Marathon (QLD) | 6 | 357 | 298 |
| 12.01.2003 Greenbank (QLD) | 4 | 378 | 388 |
| 15.03.2003 Redland Bay (QLD) | 1 | 482 | 238 |
| 13.07.2003 Coominya (QLD) | 4 | 244 | 441 |
| 28.11.2004 Southport (QLD) | 6 | 326 | 407 |
| 21.08.2005 Queensland Championships (QLD) | 1 | 320 | 442 |
| 17.04.2006 Australian Championships (QLD) | 12 | 317 | 408 |
| 10.07.2006 Albert & Logan (QLD) | 3 | 333 | 402 |
| Head-to-head after 15 games | 4 | 11 | |
| Average score | 350.93 | 377.86 | |
| Spread: | -404 | 404 | |