| Date | Tournament | State | Round | Sal Costanzo | Marie Knight |
|---|---|---|---|---|---|
| 31/03/1997 | Australian Scrabble Championship | SA | 3 | 451 | 308 |
| 25/01/1998 | City of Sydney International Masters | NSW | 9 | 299 | 374 |
| 25/01/1998 | City of Sydney International Masters | NSW | 17 | 369 | 365 |
| 08/06/1998 | Victorian Championships | VIC | 2 | 348 | 504 |
| 05/10/1998 | New South Wales Championships | NSW | 19 | 317 | 442 |
| 21/01/1999 | City of Sydney Masters | NSW | 9 | 389 | 314 |
| 12/06/2000 | Victorian Championships | VIC | 2 | 329 | 506 |
| Head-to-head after 7 games | 3 | 4 | |||
| Average score | 357.43 | 401.86 | |||
| Spread | -311 | 311 | |||