| Date | Tournament | State | Round | Sal Costanzo | Lesley Mack |
|---|---|---|---|---|---|
| 29/01/1995 | Australian Masters | NSW | 15 | 325 | 336 |
| 06/07/1995 | Jolly Roger | VIC | 1 | 428 | 278 |
| 31/03/1997 | Australian Scrabble Championship | SA | 11 | 423 | 406 |
| 21/05/2000 | Dandenong | VIC | 6 | 393 | 396 |
| 15/10/2000 | Frankston | VIC | 4 | 449 | 319 |
| 09/06/2003 | Quen Elizabeth Derby | VIC | 4 | 350 | 420 |
| Head-to-head after 6 games | 3 | 3 | |||
| Average score | 394.67 | 359.17 | |||
| Spread | 213 | -213 | |||