| Tournament | Round | Anne Trotter | Bettina Tonkin |
| 19.06.2004 Western Australian Championships (WA) | 2 | 349 | 268 |
| 11.07.2004 Bassendean (WA) | 6 | 295 | 420 |
| 09.01.2005 Summer Maximin (WA) | 1 | 347 | 388 |
| 08.01.2006 Summer Maximin (WA) | 6 | 329 | 333 |
| 12.03.2006 Bunbury (WA) | 1 | 333 | 433 |
| Head-to-head after 5 games | 1 | 4 | |
| Average score | 330.6 | 368.4 | |
| Spread: | -189 | 189 | |