| Date | Tournament | State | Round | Dawn Thomas | Zina Costanzo |
|---|---|---|---|---|---|
| 31/03/1997 | Australian Scrabble Championship | SA | 18 | 424 | 272 |
| 21/02/1999 | Camberwell | VIC | 5 | 376 | 363 |
| 18/07/1999 | Nunawading | VIC | 6 | 435 | 322 |
| 21/01/2001 | Aestival | VIC | 4 | 349 | 370 |
| 23/07/2001 | Prahran | VIC | 6 | 387 | 368 |
| 20/01/2002 | Aestival | VIC | 4 | 417 | 361 |
| 18/01/2004 | Aestival | VIC | 3 | 418 | 367 |
| 15/02/2004 | Camberwell | VIC | 6 | 441 | 305 |
| Head-to-head after 8 games | 7 | 1 | |||
| Average score | 405.88 | 341.00 | |||
| Spread | 519 | -519 | |||