| Tournament | Round | Erica Williams | Joan Watson |
| 17.05.1998 Southport Winter (QLD) | 2 | 363 | 353 |
| 07.06.1998 Millmerran (QLD) | 5 | 281 | 390 |
| 15.11.1998 Oyez (QLD) | 7 | 253 | 435 |
| 21.02.1999 Ipswich (QLD) | 6 | 347 | 395 |
| 12.09.1999 Toowoomba (QLD) | 3 | 340 | 423 |
| 09.01.2000 Coominya Summer (QLD) | 5 | 375 | 358 |
| 20.02.2000 Ipswich (QLD) | 2 | 313 | 429 |
| 09.07.2000 Coominya Winter (QLD) | 3 | 326 | 387 |
| 15.10.2000 Mindbenders Standard (QLD) | 3 | 333 | 403 |
| 14.01.2001 Greenbank (QLD) | 6 | 293 | 382 |
| 31.03.2001 Albert & Logan (QLD) | 1 | 417 | 277 |
| 20.05.2001 Harrisville (QLD) | 3 | 329 | 410 |
| 05.08.2001 Newmarket (QLD) | 6 | 343 | 387 |
| 26.08.2001 Queensland Championships (QLD) | 7 | 320 | 450 |
| 13.06.2004 Millmerran (QLD) | 3 | 350 | 394 |
| 27.08.2006 Queensland Championships (QLD) | 15 | 417 | 351 |
| 10.06.2007 Toowoomba (QLD) | 11 | 393 | 422 |
| 15.07.2007 Lockyer Valley (QLD) | 3 | 272 | 505 |
| 06.09.2008 Toowoomba (QLD) | 3 | 349 | 374 |
| Head-to-head after 19 games | 4 | 15 | |
| Average score | 337.57 | 396.05 | |