| Date | Tournament | State | Round | Zina Costanzo | Beryl Bourne |
|---|---|---|---|---|---|
| 31/03/1997 | Australian Scrabble Championship | SA | 8 | 337 | 323 |
| 21/04/2003 | Australian Championships | SA | 18 | 362 | 318 |
| 14/09/2003 | Melbourne Masters | VIC | 10 | 372 | 382 |
| 14/09/2003 | Melbourne Masters | VIC | 15 | 347 | 419 |
| 28/12/2003 | Decathon | VIC | 8 | 317 | 417 |
| 13/06/2005 | Victorian Championships | VIC | 15 | 353 | 434 |
| 11/09/2005 | World Scrabble Championships Fundraiser | VIC | 2 | 417 | 299 |
| 28/12/2005 | Decathon | VIC | 4 | 353 | 345 |
| 02/07/2006 | Bentleigh | VIC | 6 | 428 | 392 |
| 11/06/2007 | Victorian Championships | VIC | 7 | 379 | 328 |
| 15/02/2009 | Camberwell | VIC | 4 | 319 | 350 |
| Head-to-head after 11 games | 6 | 5 | |||
| Average score | 362.18 | 364.27 | |||
| Spread | -23 | 23 | |||