| Date | Tournament | State | Round | Zina Costanzo | Anne Michell |
|---|---|---|---|---|---|
| 31/03/1997 | Australian Scrabble Championship | SA | 9 | 301 | 331 |
| 18/11/2001 | SA/Victoria Border Challenge | VIC | 10 | 389 | 387 |
| 18/11/2001 | SA/Victoria Border Challenge | VIC | 11 | 400 | 372 |
| 18/11/2001 | SA/Victoria Border Challenge | VIC | 12 | 390 | 381 |
| 03/11/2002 | SA/Victoria Border Challenge Dimboola | VIC | 7 | 334 | 503 |
| 02/11/2003 | SA/Victoria Border Challenge Dimboola | VIC | 9 | 347 | 359 |
| 12/04/2004 | Australian Championships | ACT | 8 | 298 | 362 |
| 14/06/2004 | Victorian Championships | VIC | 9 | 370 | 273 |
| 14/06/2004 | Victorian Championships | VIC | 23 | 424 | 386 |
| Head-to-head after 9 games | 5 | 4 | |||
| Average score | 361.44 | 372.67 | |||
| Spread | -101 | 101 | |||