| Tournament | Round | Erica Williams | Joy McGowan |
| 22.02.1998 Ipswich (QLD) | 3 | 440 | 308 |
| 22.03.1998 Redcliffe (QLD) | 3 | 389 | 330 |
| 03.05.1998 Maelstrom (QLD) | 2 | 382 | 340 |
| 17.05.1998 Southport Winter (QLD) | 6 | 357 | 551 |
| 20.02.2000 Ipswich (QLD) | 5 | 438 | 396 |
| 18.03.2000 Redland Bay (QLD) | 5 | 361 | 378 |
| 11.06.2000 Millmerran (QLD) | 1 | 366 | 429 |
| 09.07.2000 Coominya Winter (QLD) | 4 | 358 | 313 |
| 10.09.2000 Toowoomba (QLD) | 4 | 339 | 394 |
| 15.10.2000 Mindbenders Standard (QLD) | 5 | 332 | 413 |
| 05.11.2000 Redcliffe (QLD) | 5 | 342 | 360 |
| 06.05.2001 Auran Open (QLD) | 2 | 360 | 404 |
| 26.08.2001 Queensland Championships (QLD) | 4 | 382 | 415 |
| 16.09.2001 Toowoomba (QLD) | 3 | 430 | 365 |
| 10.03.2007 Redland Bay (QLD) | 5 | 411 | 341 |
| 28.10.2007 Mindbenders Tournament (QLD) | 5 | 473 | 426 |
| 30.08.2009 Qld Champs Sun (QLD) | 7 | 418 | 330 |
| Head-to-head after 17 games | 9 | 8 | |
| Average score | 386.94 | 381.94 | |
| Spread: | 85 | -85 | |