| Tournament | Round | Erica Williams | Jan Robertson |
| 13.06.2004 Millmerran (QLD) | 2 | 496 | 314 |
| 13.02.2005 Ipswich (QLD) | 1 | 376 | 342 |
| 10.06.2007 Toowoomba (QLD) | 7 | 400 | 316 |
| 10.06.2007 Toowoomba (QLD) | 14 | 357 | 354 |
| 10.02.2008 Ipswich (QLD) | 3 | 409 | 354 |
| Head-to-head after 5 games | 5 | 0 | |
| Average score | 407.6 | 336 | |
| Spread: | 358 | -358 | |