| Tournament | Round | Nan Smith | Zina Costanzo |
| 06.12.1998 Brighton (VIC) | 5 | 372 | 360 |
| 17.10.1999 Frankston (VIC) | 2 | 351 | 402 |
| 23.01.2000 Aestival (VIC) | 5 | 347 | 434 |
| 12.06.2000 Victorian Championships (VIC) | 12 | 383 | 419 |
| 29.10.2000 Teams Event (VIC) | 5 | 437 | 368 |
| 21.01.2001 Aestival (VIC) | 3 | 434 | 368 |
| 29.12.2001 Decathon (VIC) | 3 | 283 | 374 |
| 10.06.2002 Victorian Championships (VIC) | 2 | 362 | 450 |
| 20.07.2002 July Bunny (VIC) | 2 | 300 | 100 |
| 25.08.2002 Eastern Suburbs (VIC) | 4 | 241 | 450 |
| 29.09.2002 Essendon (VIC) | 6 | 458 | 348 |
| 14.09.2003 Melbourne Masters (VIC) | 9 | 363 | 414 |
| 28.09.2003 Essendon (VIC) | 6 | 370 | 456 |
| 09.11.2003 Geelong (VIC) | 5 | 403 | 417 |
| 22.11.2003 Paynesville (VIC) | 2 | 299 | 350 |
| 30.11.2003 McKinnon (VIC) | 6 | 418 | 373 |
| 28.12.2003 Decathon (VIC) | 6 | 374 | 439 |
| 18.01.2004 Aestival (VIC) | 6 | 363 | 439 |
| 13.06.2005 Victorian Championships (VIC) | 16 | 453 | 340 |
| 11.09.2005 World Scrabble Championships Fundraiser (VIC) | 4 | 548 | 298 |
| 06.11.2005 Geelong (VIC) | 3 | 439 | 391 |
| 12.02.2006 Camberwell (VIC) | 5 | 369 | 463 |
| 02.12.2007 Bentleigh (VIC) | 3 | 494 | 337 |
| Head-to-head after 23 games | 10 | 13 | |
| Average score | 385.26 | 382.17 | |
| Spread: | 71 | -71 | |